Static Quiz- 6th April 2026

1. Which of the following are components of the environment?

1. Lithosphere
2. Atmosphere
3. Hydrosphere
4. Biosphere

2. Consider the following statements about ecosystem functions:

1. Energy flow in an ecosystem is cyclic.
2. Nutrient cycling is unidirectional.
3. Decomposers play a key role in nutrient recycling.

Which of the statements given above is/are correct?

3. Consider the following pollutants and their primary effects:

1. Particulate Matter (PM2.5) – Respiratory diseases
2. Nitrates in water – Methemoglobinemia
3. Sulphur dioxide – Ozone depletion

Which of the pairs given above are correctly matched?

4. Consider the following statements about E-waste:

1. It contains hazardous substances like lead and mercury.
2. Informal recycling can cause environmental pollution.
3. It is fully biodegradable.

Which are correct?

5. E-waste includes which of the following?

1. Discarded mobile phones
2. Old computers
3. Plastic bottles