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WorksheetsEnvironmental Impacts of Agriculture
Total questions: 23
Worksheet time: 13mins
With the human population ________________, agriculture must follow suit.
shrinking
staying the same
soaring out of control
increasing a little bit over time
The _______________ ______________ brought new equipment and farming methods that helped to increase food production.
Civil War
Revolutionary War
Industrial Revolution
French Revolution
What are two things that have allowed the human population to grow quickly.
Less wars.
The creation of stronger crops.
More people living in cities.
More overall food production.
In 2016, nearly __________________ of all cropland (2.7 million square miles), were devoted to growing corn, wheat, rice, and other grains.
1/3
1/4
1/2
3/4
Changing _________________ linked to Earth's warming are making modern agriculture more difficult.
climates
farmland
wind patterns
populations
____________________ is meeting current needs without compromising the ability for future generations to meet their needs.
irrigation
sustainability
ecosystem practices
eutrophication
The practice of watering crops through pipes, canals, and sprinklers is called....
irrigation
sustainability
livestock grazing
eutrophication
When ecosystems become loaded with too many nutrients and toxic algae grow.
irrigation
sustainability
livestock grazing
eutrophication
Agriculture accounts for ____________ % of freshwater use worldwide and that number will need to increase 15% or more by 2050 to feed growing populations.
50
60
70
80
Which of the following are consequences of irrigation?
Depletion of rivers and underground water systems.
The changing of soil when irrigation floods a particular area.
More water evaporates which affects air temperature, pressure, and moisture conditions..influencing rainfall patterns.
The erosion of coastlines.
When animals eat grass in pastures.
irrigation
sustainability
livestock grazing
eutrophication
What are two major greenhouse gases?
oxygen
methane
carbon dioxide
nitrogen
Greenhouse gases trap _____________ in the Earth's atmosphere, causing the planet to warm.
rain
cold
weather
heat
Cows and their manure are responsible for releasing huge amounts of _______________ into our atmosphere.
oxygen
methane
carbon dioxide
nitrogen
Land use and destruction lead to the release of ________________ into the atmosphere.
oxygen
methane
carbon dioxide
nitrogen
What are some other ways that cattle create problems for our environment?
Overgrazing so much that grasses can't grow back.
Pollution of water sources from overgrazing and animal wastes.
Eating too little grass and not walking on the soil.
Damaging soil by trampling on it and causing erosion.
Phosphorus and nitrogen are two elements that are needed for plant and animal growth.
True
False
Modern agriculture depends heavily on chemical ______________________.
fertilizers
testing
acids
water
What are some ways that chemical fertilizers have helped agriculture?
Boosts grain growths of corn, wheat, and rice crops.
Helped to double the rate of food production.
Have slowed the spread of disease.
Created China.
Chemical fertilizers have a lot of _________________ and ___________________ in them.
carbon/hydrogen
nitrogen/carbon
nitrogen/phosphorus
phosphorus/hydrogen
Although essential to life on earth, too much nitrogen and phosphorus in an ecosystem can cause...
much harm.
much good.
Eutrophication is a process caused by....
too much carbon dioxide.
too much nitrogen and phosphorus.
too few nutrients in an ecosystem
too few fish in the water.
Which of the following happen in eutrophication?
algae grows
algae decays and consumes oxygen in the water
other plants and animals have little to no oxygen
"dead zones" an be created
