UPPSC Health Education Officer (HEO) 2026 Mock Test Series with Answers

Q: How is Watershed best explained?

Correct Answer: B. is an area draining to a common outlet. Watershed is an area draining to a common outlet. The other choices describe different concepts.

QID #23898 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Watershed best explained?

Correct Answer: B. is an area draining to a common outlet
Watershed is an area draining to a common outlet. The other choices describe different concepts.

Question: How is Watershed best explained?

A. is the largest and deepest ocean

B. is an area draining to a common outlet

C. form a major mountain chain along western South America

D. is the zero-degree longitude passing through Greenwich

Correct Answer: B. is an area draining to a common outletExplanation: Watershed is an area draining to a common outlet. The other choices describe different concepts.

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QID #23897 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Sustainable development best explained?

Correct Answer: A. meets present needs without undermining future generations
Sustainable development meets present needs without undermining future generations. The other choices describe different concepts.

Question: How is Sustainable development best explained?

A. meets present needs without undermining future generations

B. is the zero-degree latitude dividing Earth into hemispheres

C. seeks to strengthen the global response to climate change

D. is an area draining to a common outlet

Correct Answer: A. meets present needs without undermining future generationsExplanation: Sustainable development meets present needs without undermining future generations. The other choices describe different concepts.

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QID #23896 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Paris Agreement best explained?

Correct Answer: D. seeks to strengthen the global response to climate change
Paris Agreement seeks to strengthen the global response to climate change. The other choices describe different concepts.

Question: How is Paris Agreement best explained?

A. provides an international framework for wetland conservation

B. describes transfer of energy through feeding relationships

C. is gradual change in community composition over time

D. seeks to strengthen the global response to climate change

Correct Answer: D. seeks to strengthen the global response to climate changeExplanation: Paris Agreement seeks to strengthen the global response to climate change. The other choices describe different concepts.

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QID #23895 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Ramsar Convention best explained?

Correct Answer: C. provides an international framework for wetland conservation
Ramsar Convention provides an international framework for wetland conservation. The other choices describe different concepts.

Question: How is Ramsar Convention best explained?

A. is a major long-lived anthropogenic greenhouse gas

B. absorbs much of the Sun's harmful ultraviolet radiation

C. provides an international framework for wetland conservation

D. combines high endemism with severe habitat loss

Correct Answer: C. provides an international framework for wetland conservationExplanation: Ramsar Convention provides an international framework for wetland conservation. The other choices describe different concepts.

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QID #23894 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Ecological succession best explained?

Correct Answer: B. is gradual change in community composition over time
Ecological succession is gradual change in community composition over time. The other choices describe different concepts.

Question: How is Ecological succession best explained?

A. is abnormal warming of the central and eastern equatorial Pacific

B. is gradual change in community composition over time

C. warms Earth through heat-trapping atmospheric gases

D. is a zone of frequent volcanoes and earthquakes around the Pacific

Correct Answer: B. is gradual change in community composition over timeExplanation: Ecological succession is gradual change in community composition over time. The other choices describe different concepts.

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QID #23893 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Food chain best explained?

Correct Answer: A. describes transfer of energy through feeding relationships
Food chain describes transfer of energy through feeding relationships. The other choices describe different concepts.

Question: How is Food chain best explained?

A. describes transfer of energy through feeding relationships

B. explains movement of lithospheric plates

C. flows northward through northeastern Africa to the Mediterranean

D. contains the world's largest tropical rainforest system

Correct Answer: A. describes transfer of energy through feeding relationshipsExplanation: Food chain describes transfer of energy through feeding relationships. The other choices describe different concepts.

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QID #23892 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Biodiversity hotspot best explained?

Correct Answer: D. combines high endemism with severe habitat loss
Biodiversity hotspot combines high endemism with severe habitat loss. The other choices describe different concepts.

Question: How is Biodiversity hotspot best explained?

A. is the world's largest hot desert

B. is the largest and deepest ocean

C. form a major mountain chain along western South America

D. combines high endemism with severe habitat loss

Correct Answer: D. combines high endemism with severe habitat lossExplanation: Biodiversity hotspot combines high endemism with severe habitat loss. The other choices describe different concepts.

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QID #23891 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Ozone layer best explained?

Correct Answer: C. absorbs much of the Sun's harmful ultraviolet radiation
Ozone layer absorbs much of the Sun's harmful ultraviolet radiation. The other choices describe different concepts.

Question: How is Ozone layer best explained?

A. is an area draining to a common outlet

B. is the zero-degree latitude dividing Earth into hemispheres

C. absorbs much of the Sun's harmful ultraviolet radiation

D. is the zero-degree longitude passing through Greenwich

Correct Answer: C. absorbs much of the Sun's harmful ultraviolet radiationExplanation: Ozone layer absorbs much of the Sun's harmful ultraviolet radiation. The other choices describe different concepts.

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QID #23890 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Carbon dioxide best explained?

Correct Answer: B. is a major long-lived anthropogenic greenhouse gas
Carbon dioxide is a major long-lived anthropogenic greenhouse gas. The other choices describe different concepts.

Question: How is Carbon dioxide best explained?

A. seeks to strengthen the global response to climate change

B. is a major long-lived anthropogenic greenhouse gas

C. meets present needs without undermining future generations

D. provides an international framework for wetland conservation

Correct Answer: B. is a major long-lived anthropogenic greenhouse gasExplanation: Carbon dioxide is a major long-lived anthropogenic greenhouse gas. The other choices describe different concepts.

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QID #23889 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Greenhouse effect best explained?

Correct Answer: A. warms Earth through heat-trapping atmospheric gases
Greenhouse effect warms Earth through heat-trapping atmospheric gases. The other choices describe different concepts.

Question: How is Greenhouse effect best explained?

A. warms Earth through heat-trapping atmospheric gases

B. is gradual change in community composition over time

C. combines high endemism with severe habitat loss

D. describes transfer of energy through feeding relationships

Correct Answer: A. warms Earth through heat-trapping atmospheric gasesExplanation: Greenhouse effect warms Earth through heat-trapping atmospheric gases. The other choices describe different concepts.

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QID #23888 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is El Nino best explained?

Correct Answer: D. is abnormal warming of the central and eastern equatorial Pacific
El Nino is abnormal warming of the central and eastern equatorial Pacific. The other choices describe different concepts.

Question: How is El Nino best explained?

A. absorbs much of the Sun's harmful ultraviolet radiation

B. warms Earth through heat-trapping atmospheric gases

C. is a major long-lived anthropogenic greenhouse gas

D. is abnormal warming of the central and eastern equatorial Pacific

Correct Answer: D. is abnormal warming of the central and eastern equatorial PacificExplanation: El Nino is abnormal warming of the central and eastern equatorial Pacific. The other choices describe different concepts.

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QID #23887 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Ring of Fire best explained?

Correct Answer: C. is a zone of frequent volcanoes and earthquakes around the Pacific
Ring of Fire is a zone of frequent volcanoes and earthquakes around the Pacific. The other choices describe different concepts.

Question: How is Ring of Fire best explained?

A. contains the world's largest tropical rainforest system

B. explains movement of lithospheric plates

C. is a zone of frequent volcanoes and earthquakes around the Pacific

D. is abnormal warming of the central and eastern equatorial Pacific

Correct Answer: C. is a zone of frequent volcanoes and earthquakes around the PacificExplanation: Ring of Fire is a zone of frequent volcanoes and earthquakes around the Pacific. The other choices describe different concepts.

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QID #23886 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Plate tectonics best explained?

Correct Answer: B. explains movement of lithospheric plates
Plate tectonics explains movement of lithospheric plates. The other choices describe different concepts.

Question: How is Plate tectonics best explained?

A. is the world's largest hot desert

B. explains movement of lithospheric plates

C. flows northward through northeastern Africa to the Mediterranean

D. form a major mountain chain along western South America

Correct Answer: B. explains movement of lithospheric platesExplanation: Plate tectonics explains movement of lithospheric plates. The other choices describe different concepts.

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QID #23885 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Amazon Basin best explained?

Correct Answer: A. contains the world's largest tropical rainforest system
Amazon Basin contains the world's largest tropical rainforest system. The other choices describe different concepts.

Question: How is Amazon Basin best explained?

A. contains the world's largest tropical rainforest system

B. is the largest and deepest ocean

C. is the zero-degree latitude dividing Earth into hemispheres

D. is the zero-degree longitude passing through Greenwich

Correct Answer: A. contains the world's largest tropical rainforest systemExplanation: Amazon Basin contains the world's largest tropical rainforest system. The other choices describe different concepts.

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QID #23884 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Nile best explained?

Correct Answer: D. flows northward through northeastern Africa to the Mediterranean
Nile flows northward through northeastern Africa to the Mediterranean. The other choices describe different concepts.

Question: How is Nile best explained?

A. is an area draining to a common outlet

B. seeks to strengthen the global response to climate change

C. meets present needs without undermining future generations

D. flows northward through northeastern Africa to the Mediterranean

Correct Answer: D. flows northward through northeastern Africa to the MediterraneanExplanation: Nile flows northward through northeastern Africa to the Mediterranean. The other choices describe different concepts.

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QID #23883 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Sahara best explained?

Correct Answer: C. is the world's largest hot desert
Sahara is the world's largest hot desert. The other choices describe different concepts.

Question: How is Sahara best explained?

A. describes transfer of energy through feeding relationships

B. is gradual change in community composition over time

C. is the world's largest hot desert

D. provides an international framework for wetland conservation

Correct Answer: C. is the world's largest hot desertExplanation: Sahara is the world's largest hot desert. The other choices describe different concepts.

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QID #23882 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Andes best explained?

Correct Answer: B. form a major mountain chain along western South America
Andes form a major mountain chain along western South America. The other choices describe different concepts.

Question: How is Andes best explained?

A. absorbs much of the Sun's harmful ultraviolet radiation

B. form a major mountain chain along western South America

C. combines high endemism with severe habitat loss

D. is a major long-lived anthropogenic greenhouse gas

Correct Answer: B. form a major mountain chain along western South AmericaExplanation: Andes form a major mountain chain along western South America. The other choices describe different concepts.

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QID #23881 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Pacific Ocean best explained?

Correct Answer: A. is the largest and deepest ocean
Pacific Ocean is the largest and deepest ocean. The other choices describe different concepts.

Question: How is Pacific Ocean best explained?

A. is the largest and deepest ocean

B. warms Earth through heat-trapping atmospheric gases

C. is a zone of frequent volcanoes and earthquakes around the Pacific

D. is abnormal warming of the central and eastern equatorial Pacific

Correct Answer: A. is the largest and deepest oceanExplanation: Pacific Ocean is the largest and deepest ocean. The other choices describe different concepts.

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QID #23880 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Prime Meridian best explained?

Correct Answer: D. is the zero-degree longitude passing through Greenwich
Prime Meridian is the zero-degree longitude passing through Greenwich. The other choices describe different concepts.

Question: How is Prime Meridian best explained?

A. explains movement of lithospheric plates

B. flows northward through northeastern Africa to the Mediterranean

C. contains the world's largest tropical rainforest system

D. is the zero-degree longitude passing through Greenwich

Correct Answer: D. is the zero-degree longitude passing through GreenwichExplanation: Prime Meridian is the zero-degree longitude passing through Greenwich. The other choices describe different concepts.

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QID #23879 AIIMS UPPSC Health Education Officer (HEO) 2026 Mock Test Series World Geography and Environment Medium

How is Equator best explained?

Correct Answer: C. is the zero-degree latitude dividing Earth into hemispheres
Equator is the zero-degree latitude dividing Earth into hemispheres. The other choices describe different concepts.

Question: How is Equator best explained?

A. is the largest and deepest ocean

B. form a major mountain chain along western South America

C. is the zero-degree latitude dividing Earth into hemispheres

D. is the world's largest hot desert

Correct Answer: C. is the zero-degree latitude dividing Earth into hemispheresExplanation: Equator is the zero-degree latitude dividing Earth into hemispheres. The other choices describe different concepts.

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UPPSC Health Education Officer (HEO) 2026 Mock Test Series with Answers | Military Brat Defence Academy

How is Watershed best explained?

How is Sustainable development best explained?

How is Paris Agreement best explained?

How is Ramsar Convention best explained?

How is Ecological succession best explained?

How is Food chain best explained?

How is Biodiversity hotspot best explained?

How is Ozone layer best explained?

How is Carbon dioxide best explained?

How is Greenhouse effect best explained?

How is El Nino best explained?

How is Ring of Fire best explained?

How is Plate tectonics best explained?

How is Amazon Basin best explained?

How is Nile best explained?

How is Sahara best explained?

How is Andes best explained?

How is Pacific Ocean best explained?

How is Prime Meridian best explained?

How is Equator best explained?

Free MCQs with Answers and Explanations