C11:The Earths Atmosphere

Question 1

Describe how sedimentary rocks are formed…

Answer 1

• When plants,plankton and marine animals die,they fall to the seaned and get buried by layers of sediment.
• Over millions of years they become compressed and from sedimentary rocks.

Question 2

Describe the greenhouse affect and how it affects global temperature…

Answer 2

• Long wavelength radiation that is reflected back of the earth is absorebed by greenhouse gases,this re rediates in all directions resulting in warming of the surface of the Earth.
• Global temperature is affected and is a lot more than it should be,this is due to human activity which allows more harmful Co2 in the atmosphere.
• Global temperature can ; melt ice which results in flooding,changes in rainfall pattern,unpredictable and severe storms and amount of water (if it dries up)

Question 3

State two things governments can do to reduce greenhouse gas emissions of a business…

Answer 3

• Tax companies or individuals based on the amount of greenhouse gases they emit,e.g taxing cars based on carbon dioxide they emit:this would encourage people to buy cars better for the environment
• Put a stop on emission of all greenhouse gases companies make,and ensure a license is required for emissions.

Question 4

Why can making reductions to carbon footprint be difficult?

Answer 4

• More work needed to be done for tech that lowers emissions
• May cost lots of money
• Government may not want to stunt economic growth
• Hard to get people to change to a more eco friendly lifestyle.

Question 5

Name three potential pollutants that could be released as a result of icomplete combustion of hydrocarbons,that wouldnt be released as a result of complete combustion…

Answer 5

• unburnt fuel
• carbon monoxide
• soot(carbon)

Question 6

What problems do particulates cause?

Answer 6

• If inhaled they can get stuck in the lungs and cause damage,leading to respiratory problems
• Bad for environment,reflect sunlight back into space causing global dimming

Question 7

What problems do carbon monoxide cause?

Answer 7

-It can stop blood from carrying oxygen around the body,it binds the haemoglobin that carries oxygen.
This leads to fainting,coma or even death.