KS3 Climate Change

Why is the increase of Greenhouse gasses a big issue?

• It causes climate change and increase in the global temerature 

• It can cause the earth to cool down

• It leads to more factories

• It causes a major decrease in people

Answer explanation

The increase of Greenhouse gases is a big issue because it causes climate change and an increase in the global temperature, leading to various environmental and societal impacts.

 What is the greenhouse effect?

• The warming of a planet due to trapped radiation.

• The cooling of Earth due to air pollution.

• The heating of a solid, such as a rock.

Answer explanation

The greenhouse effect refers to the warming of a planet due to trapped radiation, making it the correct choice.

Which one of the choices below is NOT a cause of global warming?

• Deforestation

• Burning Fossil Fuels

• Planting new trees

• Opening more factories

Answer explanation

Planting new trees is NOT a cause of global warming as trees absorb carbon dioxide, helping to reduce greenhouse gases in the atmosphere.

What do humans do that releases greenhouse gases into the atmosphere?

• Burn fossil fuels (like gas and coal)

• Ride bikes and use solar energy

• Compete in the Olympics

Answer explanation

Humans release greenhouse gases into the atmosphere by burning fossil fuels like gas and coal, which contribute to global warming and climate change.

Gases such as water vapor and carbon dioxide that trap heat near Earth are known as 

• Global gases.

• Greenhouse gases.

• Woodlands gases

• Science gases.

Answer explanation

The correct choice is 'Greenhouse gases' as they trap heat near Earth, contributing to the greenhouse effect.

The concentration of carbon dioxide in the atmosphere is decreasing. 

• True

• False

Answer explanation

The correct answer is False because the concentration of carbon dioxide in the atmosphere is actually increasing, contributing to global warming.

The ____________________ is a natural process in which certain gases in the atmosphere trap heat near Earth and prevent it from radiating back into space.

• Greenhouse Zone

• Greenhouse Effect

• Tropic Layer

• Heat Zone

Answer explanation

The Greenhouse Effect is a natural process in which certain gases in the atmosphere trap heat near Earth and prevent it from radiating back into space.

Which of the following events is not caused by global warming?

• Volcano erruption

• Sea levels rising

• Crops dying

• Ice caps melting

Answer explanation

The correct choice is 'Volcano erruption' because it is not caused by global warming, unlike the other options which are directly linked to climate change.

What are greenhouse gases?

• gases that cause climate change

• gases that emit green smoke

• gases that are used to make green colored glass

Answer explanation

Greenhouse gases are gases that cause climate change by trapping heat in the Earth's atmosphere.

Some greenhouse gases are naturally present in the Earth's atmosphere

• True

• False

Answer explanation

Some greenhouse gases are naturally present in the Earth's atmosphere, making the statement true.