Tag: climate factors

Questions Related to climate factors

Which of the following fixes atmospheric ${ N } _{ 2 }$?

  1. Nostoc

  2. Algae

  3. Methanogens

  4. None of these


Correct Option: A
Explanation:
Nostoc is a genus of cyanobacteria that are involved in nitrogen fixation. They are commonly found in the form of a gelatinous sheath that is composed of microfilaments.
So, the correct answer is 'Nostoc'.

The three R's to save the environment are

  1. Reserve, Reduce, Recycle

  2. Reuse, Reserve, Reduce

  3. Reserve, Reuse, Reduce

  4. Reduce, Recycle, Reuse.


Correct Option: D

The two sides of a given mountain have the same latitude and altitude Are they likely to have the same climate

  1. No, because there is likely to be less water on the side of the mountain that faces away from the prevailing winds

  2. No. because there is always on desert on one side of a mountain

  3. Yes, because latitude and altitude are the two most important climate-controlling factors

  4. Yes, because locations at the same latitude all have the same climate


Correct Option: A
Explanation:

Although latitude does play a major role in determining what kind of climate a certain place will have, there are many other factors that will play a part s well. Here are a couple of major factors that can make cities at similar latitudes have very different weather.

So, the correct option is 'No, because there is likely to be less water on the side of the mountain that faces away from the prevailing winds'. 

The surface temperature of the sun is _____________

  1. $6000^o C$

  2. $1000^o C$

  3. $10,000^o C$

  4. $9000^o C$


Correct Option: A

The ultimate energy source of all ecosystems is?

  1. Producers

  2. Organic molecules

  3. Carbohydrate

  4. Solar radiation


Correct Option: D
Explanation:

 The Sun is the major source of energy for organisms and the ecosystems of which they are a part. Producers such as plants, algae, and cyanobacteria use the energy from sunlight to make organic matter from carbon dioxide and water. This establishes the beginning of energy flow through almost all food webs. The continual input of energy, mostly from sunlight, sustains the process of life. Sunlight allows plants, algae and cyanobacteria to use photosynthesis to convert carbon dioxide and water into organic compounds like carbohydrates. This process is the fundamental source of organic material in the biosphere. The overall productivity of an ecosystem is controlled by the total energy available.

So the correct option is 'solar radiation'.

Out of the total proposed cost of various ecosystem services, cost of climate regulations and habitat for wildlife are.

  1. $50\%$

  2. $10\%$

  3. $6\%$

  4. $25\%$


Correct Option: C
Explanation:

Robert Constanza and his colleagues have put the value of ecosystem services to $33$ trillion dollars a year. Out of which $50\%$ is proposed for formation of soil, prevention of flood and mitigating droughts. The value of $10\%$ each for nutrient cycle and recreation and $6\%$ for climate regulation and habitat preservation for wild flora and fauna has been proposed.

Edaphic factor refers to.

  1. Water

  2. Soil

  3. Relative humidity

  4. Altitude


Correct Option: B
Explanation:

Edaphic factors are classified under the abiotic factors affecting an ecosystem. Edaphic factors include factors of soil, e.g., soil texture, substratum, topography, mineral composition, pH, etc. These factors can influence the distribution and interrelationships of organisms, as well as rate of decomposition.

Life arose in

  1. Soil

  2. Fresh water

  3. Marine water

  4. Air


Correct Option: C
Explanation:

We know that the environment we live in is made up of 2 components, namely living (biotic) and non-living (abiotic). Different theories were proposed to study the origin of the wife. But they lead to the conclusion that life had originated on earth in seawater and marine organisms were one of the first to emerge. In earth's early atmosphere, there was no ozone layer, thus the UV rays of the sun could directly reach the earth. As living organisms cannot survive UV radiation directly, many scientists believed that life originated in aquatic habitats. Apart from this, different requirements of these early organisms were also fulfilled in the deep-sea vents. 

Thus, option C 'Marine Water' is the correct option.

Terrestrial life would become impossible with

  1. Disappearance of moon

  2. Decrease in mean annual temperature by $10^o C$

  3. Change in orbit of earth

  4. Change in atmosphere permitting all solar radiations to reach lithosphere


Correct Option: D
Explanation:

The total amount of solar radiation reaching to the lithosphere do not enter the surface of the earth as it would heat up the earth making it unsuitable for any life. Therefore, 35% of the solar radiation are reflected back to the space.

So, the correct answer is option D.

The source of energy in an ecosystem is

  1. Sun

  2. Decayed bodies

  3. Green plants

  4. Sugar


Correct Option: A
Explanation:

Every living being on planet earth gets energy directly from the sunlight. Plants use it to manufacture food and other animals use the food manufactured by plants.