Tag: land

Quizzes (5) Questions (182)

Questions Related to land

Multiple choice water and air and their importance natural resources- air, water and land air around us air chemistry introduction to natural resources land

Match column I with column II and pick the correct option from the codes given below:

Column I Column II
p. Peroxy acetyl nitrate 1. Waste incineration
q. Polycyclic aromatic hydrocarbons 2. Global warming
r. Dioxins 3. Photochemical smog
s. Indigo 4. Carcinogens
t. IR active molecules 5. Vat dye

  1. p-3, q-4, r-1, s-5, t-2

  2. p-1, q-2, r-3, s-4, t-5

  3. p-3, q-5, r-1, s-2, t-4

  4. p-5, q-3, r-1, s-2, t-4
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Peroxy acetyl nitrate is a component of photochemical smog, PAHs are carcinogens, Dioxins come from waste incineration, Indigo is a vat dye, and IR active molecules contribute to global warming.

Multiple choice water and air and their importance natural resources- air, water and land air around us air chemistry introduction to natural resources land

Which among the given is not a natural source of air pollution?

  1. Automobile exhausts

  2. Vegetation decay

  3. Forest fire

  4. Volcanic eruptions
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The automobile exhaustion is not a natural source of air pollution, it is man-made air pollution.
It is emitted as a result of the combustion of fuels such as natural gas, gasoline, petrol,bio-diesel etc. It discharges a large amount of $CO _2$(carbon dioxide), NO, CO, ozone etc.

Hence, the correct option is A.

Multiple choice introduction to natural resources natural resources- air, water and land land air chemistry

Which is not dangerous for life?

  1. Nuclear blast

  2. Deforestation

  3. Biopollutants

  4. Ozone layer
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Nuclear blast can cause the release of radiations which can cause cancer and the radioactive materials can lead to soil pollution. Deforestation results in soil erosion and the quality of soil is degraded in which the plants cannot grow. The biopollutants are the natural microbes which act as pollutants when there is an increase in the number. 
Ozone layer is present in the stratosphere over the Earths surface. This is a protective layer which prevents the entry of the harmful UV rays from the sun into the atmosphere. 
Thus, the correct answer is option D.  
Multiple choice introduction to natural resources natural resources- air, water and land land air chemistry

Greenhouse effect occurs in

  1. Mesosphere

  2. Troposphere

  3. Ionosphere

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
The atmosphere is made up of five layers mainly, exosphere, thermosphere, mesosphere, stratosphere and troposphere. The troposphere is about 12 km thick and is found at ground level. Living organisms are found in this layer. Most of the human activities take place in this region as this is the region where human beings live. The percentage of poisonous gas like carbon dioxide, nitrogen oxide etc.  increases due to burning of fossil fuels which do not allow the heat to escape from the earth atmosphere and leads to increase in temperature and cause global warming.
So, the correct option is B.
Multiple choice introduction to natural resources natural resources- air, water and land land air chemistry land,labour, capital and entrepreneur how does production take place?
Don't press the panic button. Despite the crisis in Japan's plants, India must not take nuclear power off the table.
In view of recent nuclear blasts due to Tsunami in Japan, countries are:

  1. going to stop nuclear-energy plan

  2. devising methods to avoid this type of disaster

  3. stressing thermal energy plan

  4. stressing hydro-electric power
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

To avoid nuclear blasts due to Tsunami in Japan counteries are devising methods to avoid this types of disasters.

Multiple choice introduction to natural resources natural resources- air, water and land land air chemistry land,labour, capital and entrepreneur how does production take place?

The soil is formed by the breaking down of rocks by the action of _____.

  1. wind

  2. water

  3. climate

  4. all of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The soil is formed by breaking down of rocks by an action of wind, water and climates like thawing of water that seeped through rock and climatic changes such as weathering of rocks, landslides also causes breaking of big rocks. This is how soil is formed by all these natural processes.

Multiple choice economics laws of returns - returns to a factor and returns to scale production and costs production function producer behaviour and supply total product, average product and marginal product production and law of variable proportions production return to scale and cobb douglas function land land,labour, capital and entrepreneur how does production take place?

In the long run production function all inputs are fixed.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In the long run, all inputs are variable. The statement that all inputs are fixed in the long run is incorrect; that condition applies to the very short period or is simply false by definition.

Multiple choice economics laws of returns - returns to a factor and returns to scale production and costs production function producer behaviour and supply total product, average product and marginal product production and law of variable proportions production return to scale and cobb douglas function land land,labour, capital and entrepreneur how does production take place?

In the long run there is enough time for the firm to cover its losses and earn normal profits. This is because in the long run, all inputs are __________.

  1. identical

  2. homogenous

  3. variable

  4. fixed
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In the long run, firms have sufficient time to adjust all factors of production, meaning all inputs become variable. This flexibility allows firms to optimize their scale of operations.

Multiple choice economics laws of returns - returns to a factor and returns to scale production and costs production function producer behaviour and supply total product, average product and marginal product production and law of variable proportions production return to scale and cobb douglas function land land,labour, capital and entrepreneur how does production take place?

The period of time in which the plant capacity can be varied is known as __________.

  1. the short period

  2. the market period

  3. the long period

  4. all of the above.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The long period is defined as a time frame long enough for a firm to change its plant capacity, which involves adjusting fixed factors like capital and machinery.