The transition zone between two ecosystems is known as

The high nutrient level in estuaries leads to a high level of production within which food chain?

Which of the following is NOT a basic type of plant found in an estuary, according to the notes?

What are the three main components that make up the estuarine community?

Estuaries are characterized by unique ecological features and:

Which of the following best describes an estuary?

What type of water is found in an estuary?

What is the term for the specialized zone where rivers meet the sea?

To what depth does the neritic zone extend?

Which zone is situated above the sublittoral zone or the continental shelf?

What is the pelagic zone?

What is the approximate depth of the abyssal plains where the temperature is never above 4°C?

Which zone comprises the continental slope and rise together?

The continental rise is characterized by canyons and trenches, and is subject to:

What occurs after the continental shelf?

To what depth does the continental shelf extend?

What is the sublittoral zone also known as?

The littoral zone represents the area between which two levels?

What is another name for the littoral zone?

Which zone comprises the beach down to the edge of the ocean in the benthic zone?

What is the overall shape of the benthic zone described as?

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.