Which greenhouse gas has the highest warming potential among the following?

The IUCN Red List is most closely associated with which organization’s function?

India’s commitment under the Paris Agreement involves:

Which organization was the first UN specialized agency focused on global weather, climate, and hydrology cooperation?

The COP (Conference of Parties) meetings are key events under the framework of:

The Global Environment Facility (GEF) was founded by the World Bank in partnership with:

Which treaty provides a legally binding framework for reducing greenhouse gas emissions and was adopted in 1997?

"Earth Hour" is a global campaign primarily associated with which organization?

The Intergovernmental Panel on Climate Change (IPCC) was created by:

Which major international treaty was adopted in 1987 for protecting the ozone layer under UNEP's coordination?

Where is the headquarters of the United Nations Environment Programme (UNEP)?

Which statement best represents the legacy of both Chipko and Appiko movements?

Which of the following objectives was central to the Appiko Movement?

What unique methods were used in the Appiko Movement to spread awareness?

Who was the leader of the Appiko Movement in Karnataka?

Which southern Indian conservation movement was directly inspired by Chipko?

The Government response to Chipko led to:

Which leader is most associated with spreading the Chipko Movement nationwide?

Who among the following women leaders played a crucial role in the Chipko Movement at Reni village?

The literal meaning of the word “Chipko” is:

The Chipko Movement began in which year and place?

Which statements correctly differentiate the erosive power between the river courses?

1. The upper course has the greatest erosive power due to fast-flowing water.
2. The middle course exhibits more erosion than the lower course.
3. The lower course has significant erosive power, shaping canyons.
4. Erosive power is uniform across all three river courses.

What are the key characteristics of the lower course of a river?

1. The river meanders slowly across plains with high velocity.
2. The river loses much of its velocity and its ability to carry heavy sediment.
3. Deposition of sand and silt occurs, forming features like sandbanks.
4. The river builds up large flat plains by spreading alluvium.

Identify the true statements regarding the middle course of a river.

1. The river's velocity is significantly reduced, leading to substantial deposition.
2. The valley becomes broader, and the river banks are more stable.
3. The river continues to transport sand, silt, and mud in suspension.
4. Erosion is less pronounced compared to the mountain course due to lower water velocity.

Which of the following statements accurately describes the upper or mountain course of a river?

1. The water flows slowly through a wide valley with stable banks.
2. The river has significant erosive power, capable of moving large stones.
3. Angular stones are smoothed into rounded pebbles by friction.
4. The river primarily deposits silt and mud in this stage.

Endosulfan and Malathion are harmful because:

What is the term for the point where a river enters the sea, lake, or estuary?

What is the name for the channel within which a river flows?

What are the smaller streams that join a river along its course called?

Which soil pollutant alters soil pH and leaches heavy metals, damaging crops?

What is the term used to describe the path a river takes?

What is the term for the point of origin of a river?

Approximately how much fresh water, equivalent to rainfall, do rivers carry annually over the land surface?

What is the primary function of rivers?

The “Itai-Itai” disease in Japan was caused by:

Arsenic contamination of groundwater in India is most prevalent in:

Which disease is caused by mercury poisoning from industrial effluents?

Consider the horizontal divisions of life in lakes. Which statement is accurate?

1. The division is based on temperature gradients.
2. It is determined by the types of life forms present.
3. All zones have identical conditions for plant growth.
4. The zones are primarily defined by water movement.

The severe AQI (>450) observed in Delhi in November 2024 was mainly due to:

Which statement best describes the relationship between lake zones and light penetration?

1. Light penetrates fully to the bottom in all lake zones.
2. The Littoral Zone receives light to the bottom, while the Open Water Zone does not.
3. Light penetration is primarily determined by the depth of the Benthic Zone.
4. The Open Water Zone is defined by its complete lack of light.

What defines the Benthic Zone of a lake?

1. It is the zone with the most abundant sunlight.
2. It is the surface layer of the water.
3. It comprises the floor or bottom of the lake.
4. It is located above the Open Water Zone.

Identify the false statement regarding the Open Water Zone of a lake.

1. It lies beyond the Littoral Zone.
2. Light penetrates to the bottom in this zone.
3. Rooted plants can grow here.
4. It is characterized by deeper water.

Which pollutant is primarily responsible for smog formation?

Which of the following statements accurately describes the Littoral Zone of a lake?

1. It is the deepest part of the lake.
2. It is characterized by shallow water where light reaches the bottom.
3. Rooted plants cannot grow in this region.
4. It is located furthest from the shore.

Ozone at ground level is mainly formed by:

Which gas is the major cause of Taj Mahal’s marble deterioration?

Carbon monoxide (CO) is dangerous because:

Which statement best characterizes the oxygen levels in the bottom layer of a water body?

1. Oxygen levels are highest due to active photosynthesis.
2. Oxygen levels are significantly reduced due to decomposition.
3. Oxygen levels are maintained by direct atmospheric diffusion.
4. Oxygen levels are comparable to the surface layer.

Explain the role of decomposers in oxygen stratification.

1. Decomposers increase oxygen levels by breaking down organic matter.
2. Decomposers consume oxygen, leading to lower concentrations at the bottom.
3. Decomposers are primarily found in the well-lighted surface layer.
4. The activity of decomposers is independent of oxygen levels.

What causes the decrease in oxygen content below the surface water layer?

1. Increased photosynthetic activity at greater depths.
2. Reduced penetration of sunlight, limiting photosynthesis.
3. Enhanced diffusion of oxygen from the atmosphere.
4. Decreased utilization of oxygen by decomposers.