NCERT Science Class 10 Chapter 14 Our Environment CBSE Board Sample Problems Multiple Choice Question

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Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as:

1. Eutrophication

2. Pollution

3. Bio-magnification

4. Accumulation


In the given food chain, suppose the amount of energy at fourth trophic level 5 kJ, what will be the energy available at the producer level?

Grass – Grasshopper- Frog Snake - Hawk

1. 5 kJ

2. 50 kJ

3. 500 kJ

4. 5000 kJ


Which one of the following is an artificial ecosystem?

1. Pond

2. Crop field

3. Lake

4. Forest


Which of the following is not an example of abiotic factors?

1. Light

2. Plants

3. Heat

4. Temperature


Which of the following are environment-friendly practices?

1. Carrying cloth-bags to put purchases in while shopping

2. Switching off unnecessary lights and fans

3. Walking to school instead of getting your mother to drop you on her scooter

4. All of the above


Which of the following constitute a food-chain?

1. Grass, wheat and mango

2. Grass, goat and human

3. Goat, cow and elephant

4. Grass, fish and goat