Environmental Studies · General Awareness

Greenhouse Gases and Atmosphere

1,328 Questions

Review important questions related to greenhouse gases, global warming, and atmospheric changes. The practice set focuses on identifying major pollutants and their environmental impact. These concepts are tested in the general awareness and environmental studies sections.

Greenhouse gas identificationGlobal warming processAtmospheric carbon dioxideMethane emissionsCement production emissions

Greenhouse Gases and Atmosphere Questions

Multiple choice chemistry rocks and minerals coal petroleum non-renewable sources of energy

The major constituent of natural gas is:

  1. methane

  2. ethane

  3. propane

  4. ethene
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Natural gas is primarily composed of methane, but also contains ethane, propane and heavier hydrocarbons. It also contains small amounts of nitrogen, carbon dioxide, hydrogen sulphide and trace amounts of water.

Multiple choice chemistry rocks and minerals coal petroleum non-renewable sources of energy

The major constituent of natural gas is :

  1. methane

  2. propane

  3. butane

  4. hexane
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Answer:- (A) Methane 
Natural gas is primarily composed of methane, but also contains heavier hydrocarbons. It also contains small amounts of nitrogen, carbon dioxide, hydrogen sulphide and trace amounts of water.

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

Primary atmosphere contained :

  1. $ CO _2, NH _3$ and $ H _2 O $
  2. $ CH _4 , NH _3, H _2 $ and $ H _2 O $
  3. $ CO _2, N _2 H _2 $ and $ H _2 O $
  4. $ CH _4 , CO _2 , N _2 , O _2 $ and $ H _2 O $
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Oparin-Haldane hypothesis suggests the primary atmosphere was composed of methane (CH4), ammonia (NH3), hydrogen (H2), and water vapor (H2O). These were the precursors for organic molecules.

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

Methane of primary atmosphere disappeared in secondary atmosphere because of :

  1. Consumption in formation of carbohydrates

  2. Consumption in formation of various types of organic compounds

  3. Escaping in space
  4. Oxidation to $CO _2$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

As free oxygen began to accumulate in the atmosphere due to photosynthesis, methane was oxidized into carbon dioxide and water, leading to its disappearance from the atmosphere.

Multiple choice commercial applications global environmental change causes of resource depletion causes of greenhouse effect ozone layer depletion

Of the following, which is a greenhouse gas?

  1. Nitrogen dioxide

  2. Sulphur dioxide

  3. Carbon dioxide

  4. Carbon monoxide
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Greenhouse gases generally traps the radiations of the earth which leads to increase in the temperature of the earth and is the major cause for global warming. The greenhouse gases includes water vapour, carbon dioxide, methane, nitrous oxide, and ozone.
Thus, the correct answer is option C.
Multiple choice economics environment and sustainable development need for sustainable development environmental economics sustainable development

Which of the following are greenhouse gases?

  1. carbon dioxide

  2. methane

  3. nitrous oxide

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

All of the above. 

Greenhouse gases are gases in Earth's air that trap heat. They let daylight go through the climate, yet they forestall the warmth that the daylight brings from leaving the environment.

Multiple choice

Which gas comprises the majority of our atmosphere?

  1. Oxygen, duh because we breath it.

  2. Carbon Dioxide, duh because we exhale it.

  3. Nitrogen, duh even though humans don't use the gas.

  4. Water vapor, (duh) because of the humidity.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Earth's atmosphere is composed of approximately 78 percent nitrogen gas. Oxygen makes up about 21 percent, while carbon dioxide and other gases exist in much smaller trace amounts.

Multiple choice

How do humans release carbon dioxide into the atmosphere?

  1. Respiration and Combustion

  2. Photosynthesis

  3. Combustion and Death

  4. Decomposition
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Humans release carbon dioxide through cellular respiration (a byproduct of metabolism) and through the combustion of fossil fuels for energy.

Multiple choice

How does Carbon enter the atmosphere as Carbon Dioxide?

  1. Respiration and Combustion

  2. Combustion and Death

  3. Photosynthesis and Animals

  4. Machines and Animals
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbon enters the atmosphere as carbon dioxide primarily through respiration (by all living things) and combustion (burning of organic matter or fossil fuels).

Multiple choice

Are humans primary consumers of carbon dioxide or secondary consumers?

  1. primary

  2. secondary

  3. neither because humans release carbon dioxide

  4. both because humans use oxygen
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Humans are heterotrophs that consume organic carbon for energy and release carbon dioxide as a byproduct of cellular respiration. They do not consume carbon dioxide as a food source.

Multiple choice

What gas is the carbon cycle based on?

  1. Carbon monoxcide

  2. Carbon dioxide

  3. Carbon disulphide

  4. Carbon trioxide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The carbon cycle is primarily based on carbon dioxide (CO2), which moves between atmosphere, oceans, organisms, and earth. Carbon monoxide (CO) is a toxic pollutant, carbon disulphide (CS2) is an industrial chemical, and carbon trioxide doesn't exist as a stable compound. CO2 is the form of carbon that cycles through Earth's systems.

Multiple choice

What is the biggest source of green house gas emissions?

  1. Deforestation

  2. Burning fossil fuels

  3. Cows farts

  4. Fertilizers
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Burning fossil fuels for energy, transport, and industry is the largest contributor to global greenhouse gas emissions. Other factors like deforestation and agriculture contribute, but to a lesser extent.