Environmental Chemistry

Environmental Chemistry
Class:XI / Unit:14

1. The agricultural field that produces maximum methane gas into atmosphere is

Groundnut field
Paddy field
Cotton field
Wheat field

2. Fluorosis, the bone disease, is caused by the presence of

Pesticides in water
Sulphur dioxide in air.
Carbon monoxide in air
Fluorides in water

3. Which of the following is responsible for depletion of ozone layer in the upper strata of the atmosphere?

Freons.
Polyhalogens
Ferrocene
Fullerencs

4. Which of the following acts as a sink for CO?

Oceans
Plants
Haemoglobin
Microorganisms present in the soil

5. Photochemical smog is related to pollution if

Air
Water
Soil
None of these

6. Domestic waste mostly constitutes

Effluents
Air Pollution
Biodegradable pollution
Non-biodegradable pollution

7. Which is most harmful for life on globe?

Soil Erosion
Deforestation
Increasing Desert
Nuclear Fallout.

8. One of the following is the chief source of water and soil pollution

Agro industry
Thermal power stations
Mining
All of these

9. What is the indicator of pollution in water?

Amount of oxygen
Amount of BOD
Diesel Oil
Amount of nitrogen

10. A disease caused by eating fish contaminated by industrial waste, containing mercury compounds, is called as

Minamata disease
Osteosclerosis
Minamata disease
Brights disease
Hashimotos disease