Atmosphere Quiz with Answers PDF Download – Test 81

MCQ 401: Ppm stands for:

1. Parts per million
2. Page per minute
3. Portable people meter
4. People progressive movement

MCQ 402: What is the main contamination in water?

1. Human Faeces
2. Metals
3. chemicals
4. Insects

MCQ 403: In which ecosystem the sun is the main source of energy ?

1. Fuel power ecosystem
2. Man subsidized solar power ecosystem
3. Unsubsidized natural solar powered ecosystem
4. Naturally subsidized solar powered ecosystem

MCQ 404: What is the main anthropogenic activity that causes radioactive materials?

1. Deforestation
2. Power plants and Nuclear weapons
3. Industrial Pollution
4. Solar Power

MCQ 405: The tertiary treatment of sewage is also known as:

1. Advance Treatment
2. Preliminary Treatment
3. Secondary Treatment
4. Primary Treatment