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WorksheetsHuman Influences on the Environment Review
Total questions: 23
Worksheet time: 14mins
Which of the following is not a consequence of deforestation?
Global warming
Destruction of foodchains and food webs
Soil erosion
Climate changes
Bioaccumulation
What do greenhouse gases do?
Reflect the sun's energy
Block the sun's infrared radiation
Act as a thermal blanket for the Earth, absorbing heat and warming the surface
They help light up the moon at night
What happens to the light energy from the sun when it hits the Earth's surface?
Some is absorbed
Some is reflected back to space
Some is trapped by greenhouse gases in the Earth's atmosphere
The greenhouse effect is caused by
more heat arriving at the Earth from the sun
the Earth releasing more heat at night
gases in the air trapping heat released by the Earth
The graph shows us that
the earth temperature is always increasing
the earth's temperature has steadily increased since 1900
the earth's temperature has steadily rising since the 1960s
the earth's temperature decreased during the 19th and 20th centuries
Carbon dioxide
Methane
Water vapour
All of the above
Which is NOT caused by acid rain?
damage to statues
dying fish
spread of disease
weakened trees
Carbon monoxide and carbon dioxide react with water in the ocean.
Carbon dioxide and oxygen react with water in the air.
Sulfur dioxide and carbon monoxide react with lake water.
Sulfur dioxide and nitrogen oxide react with water in the air.
What are the two types of acid that are in acid rain?
Iron
sulfuric
nitric
sulfur
Fertilizers contain which TWO substances which can lead to eutrophication?
Carbohydrates
Sulfates
Phosphates
Nitrates
Leaching is...
When acid rain harms plants
When fertilizers are stuck in soil, harming plants
When fertilizers are washed away by rain, ending up in rivers/streams
When fertilizers are taken up into the plant to be used for chemical processes
What are the dangers of algal blooms?
They might take up too much room
They block sunlight for plants under water
They do not harm other organisms
Other organisms eat them and they are toxic
Place the following in the correct order:
1. Bacteria reproduce rapidly and respire
2. Other organisms suffocate due to lack of oxygen
3. Plants and algae die, providing food for bacteria
4. Less oxygen is available for other organisms
1,2,3,4
4,3,2,1
1,4,2,3
3,1,4,2
What substance is used to kill harmful insects, small animals, wild plants, and other unwanted organisms
pest
pesticide
productivity
spray
What substance is added to soil to make plants grow better and increase crop yield?
mechanization
livestock
hormone
fertilizer
The use of pesticides can lead to...
(More than one correct answer)
Bioaccumulation
Global warming
Pests becoming resistant to pesticides
Eutrophication
Fish farming is an alternative to which environmental issue?
Global warming
Overfishing
Bioaccumulation
Deforestation
True or False: Fish farmers should limit the activity of fish to increase crop yield.
True
False
What causes eutrophication on/around fish farms?
(More than one correct answer)
Increased oxygen content of the water
Use of pesticides
Fish faeces
Decomposition of food pellets
Which is the best definition of pollution?
Anything that causes global warming
Contamination of the environment by harmful substances produced by human activity
Contamination of the water by farms and factories
Negative affects on the environment by humans
Which of the following can be used to control pests on a farm?
(More than one correct answer)
Monocultures
Pesticides
Biological control
Deforestation
