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 physics heat and energy

Energy-related $CO _2$ accounts for approximately what share of total U.S. human-made greenhouse gases?

  1. $20%$
  2. $40%$
  3. $60%$
  4. $80%$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

These emissionsmostly from burning coal, oil, and natural gasaccounted for 82 percent of all U.S. greenhouse gases in 2013.

Multiple choice

What is the main gas found in the air we breathe?

  1. Nitrogen

  2. Hydrogen

  3. Oxygen

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

The Earth's atmosphere is composed of approximately 78 percent nitrogen, 21 percent oxygen, and small amounts of other gases like argon and carbon dioxide.

Multiple choice

Which produces the most Greenhouse Gases every year?

  1. Cows

  2. Cars

  3. Planes

  4. Nuclear Power Plants
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Livestock, particularly cattle, produce significant amounts of methane, a potent greenhouse gas, through enteric fermentation. This contributes more to global greenhouse gas emissions than the entire transportation sector.

Multiple choice

What gases make up most of our atmosphere?

  1. Nitrogen and CO2

  2. Oxygen and CO2

  3. Nitrogen and Oxygen

  4. CO2 and Water
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Earth's atmosphere is composed primarily of nitrogen (about 78%) and oxygen (about 21%), with trace amounts of other gases.

Multiple choice methane study of methane carbon- an important element hydrocarbons chemistry

Methane is a major component of :

  1. biogas

  2. producer gas

  3. natural gas

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

The main component of natural gas is methane. 

Generally, less than 5 percent of natural gas is ethane and propane. 
The main uses of methane natural gas are to generate electricity and make energy. Methane is the main component of natural gas. The combustion of methane releases energy, which is in the form of natural gas.

Multiple choice geography pollution - preventive measures human activities and environmental degradation human activities and its impact on environment pollution, sources, effects and preventive measures

U.S.A. is the major producer of _____________.

  1. Carbon dioxide

  2. Carbon monoxide

  3. Methane

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The USA is historically one of the largest emitters of carbon dioxide due to its large industrial base and energy consumption.

Multiple choice biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

The largest store of carbon molecules on earth is in

  1. The atmosphere

  2. Fossil fuels

  3. Marine sediments

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

When marine organisms die, their bodies sink into the sediments at the bottom of the ocean. The carbon from their bodies is released which forms marine sediments that arc the largest store of carbon on earth.

Multiple choice geography amazing energy energy and uses energy and its different forms energy

The gas produced by decaying agricultural waste, plant residues, animal dung etc. in the absence of air, is called _____________.

  1. carbon di oxide

  2. bio gas

  3. nitrogen

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

The gas produced by decaying agricultural waste, plant residues, animal dung etc. in the absence of air, is called Biogas.

Biogas is the mixture of gases produced by the breakdown of organic matter in the absence of oxygen. Biogas can be produced from raw materials such as agricultural waste, manure, municipal waste, plant material, sewage, green waste or food waste. Biogas is a renewable energy source.

Multiple choice biology physical resources air and winds wind energy air as a natural resource

What is categorized as a trace gas in earth's atmosphere?

  1. Nitrogen

  2. Oxygen

  3. Carbon dioxide

  4. Both a and b
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Trace gases are those present in very small concentrations in the atmosphere. Carbon dioxide is considered a trace gas, whereas Nitrogen and Oxygen are major components.

Multiple choice zoology environmental pollution primary air pollutants air pollution - types and sources not for breathing not for drinking

Which of the following gas is responsible for 'Global-Warming'?

  1. Methane

  2. Ozone

  3. Carbon-dioxide

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

Carbon-dioxide is responsible for 'Global-Warming.
A layer of $CO _2$ in the atmosphere traps the infrared radiation coming from earth's surface. These trapped radiations heat the earth's atmosphere which results in green house effect and global warming.

Multiple choice chemistry chemical equilibrium relationship between equilibrium constant, reaction quotient and gibbs energy law of mass action chemical equilibrium and acids-bases
Greenhouse gas $CO _2$ can be converted to $CO(g)$ by the following reaction

$CO _2(g)+H _2(g)\rightarrow CO(g)+H _2O(g)$,
 
termed as water gas reaction.

$\Delta G$ for the reaction at 1000 K is : 

 $(\Delta H _{\displaystyle1000\;K}=35040\;J\;mol^{-1}\ ; \Delta S _{1000\;K}=32.11\;J\;mol^{-1}\ K^{-1})$

  1. $2930\;J$
  2. $2934\;J$
  3. $2300\;J$

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A.2930J
$\triangle G=\triangle H-T\triangle S\ \triangle G=35040-1000\times 32.11\ \quad \quad \quad \quad =35040-32110\ \quad \quad \quad \quad =2930J$