Tag: abiotic components

Questions Related to abiotic components

Salt concentration of the sea measured in parts per thousand is 

  1. 10-5

  2. 30-70

  3. 0-5

  4. 30-35


Correct Option: D
Explanation:

The salt concentration of the sea is 3.5 %, which means it is about 30-35 ppm. So, this means that there are 35 gms of seawater for every 1 liter of water.

So, option D is the correct answer.

Which of the following NGO releases State of Environment Report in India?

  1. Seva Bharati

  2. Development Alternatives

  3. Tirumitra

  4. Integrated Rural Development Organization


Correct Option: B

Which ecosystem is important in purifying air, recycling water and controling climate?

  1. Man subsidized solar power ecosystem

  2. Fuel power ecosystem

  3. Naturally subsidized solar powered ecosystem

  4. Unsubsidized natural solar powered ecosystem


Correct Option: A

When ELR is less than ALR, resulting environmental lapse rate is known as

  1. Super Adiabatic

  2. Sub-Adiabatic

  3. ELR

  4. All of above


Correct Option: B

Greatest decline, being observed over America and Argentina, ranges from 5% to

  1. 8%

  2. 10%

  3. 9%

  4. 1%


Correct Option: B

What does help in reaeration from atmosphere?

  1. Turbidity

  2. Sunlight

  3. Oxygen

  4. Carbon dioxide


Correct Option: A

Edaphic factors are related to 

  1. Humidity

  2. Soil texture

  3. Rainfall

  4. Wind velocity


Correct Option: B
Explanation:
  • Various environmental factors can be divided majorly into climatic factors, edaphic factors and biotic factors.
  • The factors which relate to structure and composition of soil are called edaphic factors. Soil composition, organic matter, soil water, soil air and soil organisms are examples of edaphic factors.
  • Humidity, rainfall and wind velocity are climatic factors.
  • Examples of biotic components include animals, plants, fungi, and bacteria.
  • So the correct option is B.

If there was no CO$ _2$ in the earth's atmosphere, the temperature of earth's surface would be 

  1. As such

  2. Less than the present level

  3. Increase from present level

  4. Dependent upon oxygen amount of the environment


Correct Option: B
Explanation:

Carbon dioxide is a greenhouse gas. It has the ability to trap sunlight and thus causes the increase in the temperature of Earth surface. If the situation on the Earth was with a lesser amount of $CO _2$, the temperature would have been very little. More pollution will cause the release of more $CO _2$ to the atmosphere causing global warming. 

Due to the increased average global temperature on fish populations, the fish will show
I. Movement from saline to fresh waters
II. Movement to deeper waters
III. Movement to higher latitudes

  1. I only

  2. II only

  3. III only

  4. I and II

  5. II and III


Correct Option: E
Explanation:

Limited or no sunlight in deeper waters keep the temperature lower in the regions making it suitable for fishes when surface water become warm due to increasing in average global temperature. Likewise, higher latitudes maintain lower temperatures due to the angle of irradiance. Salinity does not affect the temperature range of water bodies. Thus, the correct answer is E.

There is no atmospheric reservoir in

  1. Carbon cycle

  2. Water cycle

  3. Phosphorus cycle

  4. Sulphur cycle


Correct Option: C
Explanation:

The abiotic components which are recycled without any involvement of the gaseous form are known as the sedimentary cycle. The element is present in the form of salts as rocks in the geosphere which is taken up by the plants and then transferred to the animals. The phosphate is generally transferred and used in the form of ATP by the living cells. There is no form of phosphorus present in the atmosphere.

Thus, the correct answer is option C.