c13-the earth atmosphere

Question 1

What is the equation for the incomplete combustion of a fuel

Answer 1

6CO2 + 6H2O-C6H12O2 + 6O2
carbonation dioxide + water - glucose + oxygen

Question 2

What is the atmosphere

Answer 2

A layer of gas surrounding the earth

Question 3

What was the early atmosphere composed of?

Answer 3

Mostly carbon dioxide

Question 4

How did oceans form?

Answer 4

Water vapour condensing as the Earth cooled

Question 5

How did the amount of carbon dioxide in the atmosphere decreased to today’s level?

Answer 5

it dissolved in the oceans
photosynthesis
converted to fossil fuse
precipitated as in solid metals carbonates

Question 6

When did life start to appear? And what was the impact of this on oxygen in the atmosphere?

Answer 6

About 2.7 billion years ago
amount of atmospherical oxygen increased as it was released in the photosynthesis

Question 7

How has the amount of nitrogen in the atmosphere changed over time?

Answer 7

Increase slowly as it is very stable molecule

Question 8

Why can’t scientist not be sure about the composition of the earths early atmosphere?

Answer 8

It was billions of years ago and evidence is limited

Question 9

What is the current composition of the atmosphere?

Answer 9

Approximately 80% nitrogen 20% oxygen and trace amounts of other gases such as carbon and dioxide water vapour and noble gases

Question 10

What is a greenhouse gas?

Answer 10

A gas that trapped radiation from the Sun

Question 11

What type of radiation do greenhouse gases absorb?

Answer 11

Long wavelength infrared radiation

Question 12

Name three greenhouse gases

Answer 12

Methane
carbon dioxide
water vapour

Question 13

If two ways recent human activities have increased the amount of atmospheric carbon dioxide

Answer 13

Burning fossil fuels
Deforestation

Question 14

Give two ways recent human activity has increased the amount of atmospheric methane

Answer 14

Rice farming
Cattle farming

Question 15

What is global warming?

Answer 15

An increased in the overall global average temperature

Question 16

What is global climate change?

Answer 16

The change in long-term where patterns across the planet

Question 17

What are some possible effects of climate change?

Answer 17

Sea levels rising
Extreme weather events
Changes in the amount and time of rainfall
Changes to ecosystems and habitats
Polar ice cap melting

Question 18

What is carbon footprint?

Answer 18

The amount of carbon product, process, or person releases in the atmosphere over its lifetime

Question 19

How is carbon monoxide formed and what is the danger associated with it?

Answer 19

Incomplete combustion,
colourless and odourless toxic gas

Question 20

How are particulate formed and what are the dangers associated with them?

Answer 20

Incomplete combustion,
global dimming, respiratory problems, potential to cause cancer

Question 21

How is sulfur dioxide formed and what are the dangers associated with it?

Answer 21

Sulfur impurities in fossil fuels react with oxygen during combustion,
acid rain respiratory problems

Question 22

How are oxides of nitrogen formed and what are the dangers associated with them?

Answer 22

Atmospheric oxygen and nitrogen reacts in the heat of a combustion engine,
acid rain respect your problems

Question 23

Which pollutant is formed in car engines from the reaction between two glasses that occur naturally in the atmosphere?

Answer 23

Oxides of nitrogen

Question 24

Name the process by which carbon dioxide changes state from a solid to a gas

Answer 24

Sublimation

Question 25

How is planting trees able to produce the effects of global climate change?

Answer 25

Trees carry out photosynthesis
Carbon dioxide converts to other products

therefore it reduces the volume of greenhouse gases in the atmosphere