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earth science

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Total cards: 20•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (20)

#1
Front (Question)

• What is the word equation for the reaction between acid rain and limestone?

Back (Answer)

Calcium carbonate + sulphuric acid  calcium sulphate + water + carbon dioxide

#2
Front (Question)

• What do cars have in them to convert nitrogen oxides to harmless nitrogen?

Back (Answer)

Catalytic converter

#3
Front (Question)

• State the percentage of Oxygen In today’s atmosphere

Back (Answer)

About 20% (accept 21%)

#4
Front (Question)

• Why did the amount of carbon dioxide gas decrease over time?

Back (Answer)

Plants take in carbon dioxide for photosynthesis

#5
Front (Question)

• State 3 pieces of evidence for Climate change

Back (Answer)

Any 3 from: warmer oceans, reducing ice sheets, global temperature rise, rising sea levels, decreased snow cover

#6
Front (Question)

• What events produced the Earth’s early atmosphere?

Back (Answer)

Volcanic activity

#7
Front (Question)

• What made up the Earth’s early atmosphere?

Back (Answer)

Carbon dioxide and water vapour

#8
Front (Question)

• What process formed the oceans?

Back (Answer)

condensation

#9
Front (Question)

• What was the carbon dioxide in the oceans used for?

Back (Answer)

Sea creatures used it to create their calcium carbonate shells.

#10
Front (Question)

• What is the chemical test for oxygen?

Back (Answer)

Relight a glowing splint.

#11
Front (Question)

• Carbon dioxide, methane and water vapour absorb energy radiated from the Earth and reflect it back. This keeps the Earth warm. What is this called?

Back (Answer)

Greenhouse effect

#12
Front (Question)

• What type of radiation does the Earth radiate?

Back (Answer)

Infrared radiation (IR)

#13
Front (Question)

• More greenhouse gases, means the more energy absorbed and reflected back to Earth. This increases the temperature of the Earth. What is the name for this? Global warming

Back (Answer)

Global warming

#14
Front (Question)

• State 2 greenhouse gases

Back (Answer)

methane carbon dioxide

#15
Front (Question)

• Balance this equation: NO + O2  NO2

Back (Answer)

2NO + O2  2NO2

#16
Front (Question)

• What are the products of complete combustion?

Back (Answer)

Carbon dioxide and water

#17
Front (Question)

• When does incomplete combustion happen?

Back (Answer)

Low supply of oxygen

#18
Front (Question)

• What are the products of incomplete combustion?

Back (Answer)

Carbon dioxide, carbon monoxide, water and soot (carbon)

#19
Front (Question)

• Why is carbon monoxide a problem?

Back (Answer)

stops oxygen binding to red blood cells

#20
Front (Question)

• What environmental problem is caused by sulfur dioxide?

Back (Answer)

Acid rain