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WorksheetsEarth - Carbon Cycle, Global Warming, Ocean Acidification
Total questions: 43
Worksheet time: 2hrs 53mins
Name
Class
Date
1.
Greenhouse gases, in moderate amounts, keep the Earth's temperature stable
a)
True
b)
False
2.
Why is the increase of Greenhouse gasses a big issue?
a)
It causes climate change and increase in the global temerature
b)
It can lead to a major increase in Greenhouses
c)
It leads to more factories
d)
It causes a major decrease in people
3.
This process keeps Earth's temperature suitable for life.
a)
Convection Currents
b)
Greenhouse Effect
c)
Albedo Effect
d)
Water Cycle
4.
The main human activity that releases greenhouse gases is
a)
using bottled water
b)
burning fossil fuels
c)
texting on cellphones
d)
eating meat
5.
Things you can do to help decrease global warming include:
a)
Eat more ice cream.
b)
Keep your freezer door open.
c)
Keep your air conditioner on high.
d)
Turn off your lights when you’re not using them.
6.
What is the average weather for a particular time and region called?
a)
drought
b)
weather
c)
emissions
d)
climate
7.
Climate change may have an impact on the following:
a)
Energy and human health
b)
Air quality, oceans, and coastal zones
c)
Agriculture
d)
All of the above
8.
The graph below shows CO2 emissions and temperatures from 1909 to 1949. What conclusion is best supported by the graph?
a)
There is no relationship between carbon dioxide concentrations and temperatures
b)
As carbon dioxide concentrations increase, temperatures increase
c)
As carbon dioxide concentrations increase, temperatures decrease
d)
As carbon dioxide concentrations decrease, temperatures increase
9.
What is carbon footprint?
a)
the total amount of greenhouse gases that are emitted into the atmosphere
b)
the release of a gas
c)
a place or environment where a plant or animal naturally or normally lives of grows
d)
a certain type of greenhouse gas
10.
Why is the carbon cycle important?
a)
It continuously reuses and recycles carbon in the ecosystem
b)
It helps animals to digest food
c)
It takes nitrogen and oxygen out of the atmosphere
11.
Carbon is used by plants during which process?
a)
Respiration
b)
Transpiration
c)
Photosynthesis
d)
Transportation
12.
Why does too much carbon dioxide in the atmosphere cause climate change?
a)
It cools down our planet
b)
It blocks out UV rays
c)
It traps heat and warms up our planet
d)
It lets sunlight escape
13.
How does carbon in a grass plant get into a lion?
a)
The lion eats the grass
b)
Carbon from grass doesn't end up in a lion.
c)
The carbon ends up in the food the lion eats.
d)
The lion breathes in carbon given out by the plant
14.
What are the end products of cellular respiration?
a)
Carbon dioxide, Water and energy
b)
Carbon dioxide, Glucose and Water
c)
Oxygen, Glucose and energy
d)
Water, Carbon dioxide and Oxygen
15.
Carbon dioxide is created by
a)
Burning fossil fuels
b)
Cellular respiration
c)
Decomposing organic matter
d)
All answers are correct
16.
Which is a green-house gas?
a)
Methane
b)
Oxygen
c)
Hydrogen
d)
Ammonium
17.
Which of the following are greenhouse gases?
a)
Carbon dioxide
b)
Methane
c)
Water vapour
d)
All answers are correct
18.
Increase in which gas is primarily responsible for increased global warming?
a)
Carbon dioxide
b)
Water vapor
c)
Methane
d)
Nitric oxides
19.
Which of the following adds oxygen to the atmosphere?
a)
Forest fires
b)
Photosynthesis
c)
The weathering of rocks
d)
Life processes of animals
20.
Which one of the choices below is NOT a cause of global warming?
a)
Having too many farm animals
b)
Burning Fossil Fuels
c)
Planting new trees
d)
volcanic eruption
21.
What does CFC stand for
a)
Carbon Fiber Chlorine
b)
Chlorofluorocarbon
c)
Care For Carbon
22.
What role do the oceans play in the carbon cycle?
a)
They have no role
b)
They are a major absorber (sink) of carbon dioxide
c)
both a and b
d)
neither a nor b
23.
If the climate becomes warmer, sea levels will _____________.
a)
rise,but this will have no impact on humans
b)
fall, which will increase the amount of available land
c)
rise, causing some pacific islands to disappear
d)
fall, which will have no impact on humans
24.
A natural resource that can be produced, regrown, or reused fast enough to keep up with how quickly it is used is called...
a)
nonrenewable resource
b)
repeated resource
c)
renewable resource
d)
rejected resource
25.
What is one way that carbon enters the atmosphere?
a)
Sunlight
b)
Vehicle emissions/Exhaust
c)
Ocean uptake
d)
Rain
26.
How are fossil fuels related to the Carbon cycle?
a)
Dead plants filled with carbon can become fossil fuels
b)
They aren't related
27.
Choose one way humans can affect the carbon cycle
a)
Inhaling oxygen
b)
Exhalation of carbon dioxide
c)
Using CFCs
d)
Wearing sunscreen
28.
In the food web, which organisms release the carbon from dead things back into the environment?
a)
Producers
b)
Consumers
c)
Scavengers
d)
Decomposers
29.
How are burning of fossil fuels and volcanic eruptions similar with respect to their effects on the carbon cycle?
a)
Both remove carbon from the atmosphere.
b)
Both add carbon to the atmosphere.
c)
Both add carbon to the lithosphere.
d)
Both remove carbon from the lithosphere.
30.
Deforestation contributes to greenhouse gases by
a)
loss of trees that would otherwise remove carbon dioxide from the air
b)
as trees are cut, they release carbon dioxide
c)
increasing the amount of oxygen in the air
31.
Carbon is stored in
a)
Trees and other living things
b)
Oceans
c)
Underground in soil and fossil fuels
d)
All are correct
32.
Carbon is released into the atmosphere through all of the following ways except:
a)
respiration
b)
cow flatulence
c)
photosynthesis
d)
burning fossil fuels
33.
Which picture best represents how the amount of carbon dioxide in the atmosphere has changed over the past 500 years?
a)
top left
b)
bottom left
c)
top right
d)
bottom right
34.
By what amount did carbon dioxide in Earth's atmosphere increase between 1960 and 2000?
a)
40 - 50 ppm
b)
60 - 70 ppm
c)
110 - 120 ppm
d)
360 - 370 ppm
35.
Carbon dioxide levels in the air have changed throughout earth's history. The difference today is how ______ the change is happening.
a)
rapidly
b)
slowly
c)
wide spread
36.
Ocean acidification begins with
a)
pollution from ships
b)
increased carbon dioxide released from combustion
c)
dumping of waste from cities into the ocean
d)
more marine animal wastes
37.
Carbon dioxide and seawater combine to form
a)
calcium carbonate
b)
carbon monoxide
c)
carbonic acid
38.
As the ocean becomes more acidic, the pH of the water
a)
increases
b)
decreases
39.
The H+ ion is released in a solution that is
a)
acidic
b)
alkaline
c)
neutral
40.
Marine organisms make their shells from calcium and
a)
chloride
b)
carbonate
c)
seawater
41.
An example of a marine organism that needs calcium carbonate
a)
a crab
b)
a shark
c)
an octopus
42.
Very slight increases in the acidity of seawater __________ marine organisms that make shells.
a)
doesn't bother
b)
has no effect on
c)
is unhealthy and stresses
43.
People depend on ocean organisms for __________________.
a)
minerals
b)
fuels
c)
food and water
d)
All of these choices
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