WorksheetsSection 5.2 Practice
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
The process in which nitrogen is cycled between the atmosphere, bacteria, and other organisms is called
a)
phosphorus cycle
b)
nitrogen cycle
c)
oxygen cycle
d)
carbon cycle
2.
_________________ break down decaying organisms.
a)
algae
b)
decomposers
c)
producers
d)
consumers
3.
Which of the following is one of the largest carbon reservoirs on Earth?
a)
Limestone
b)
Amazon Rain Forest
c)
fossil fuels
d)
Atlantic Ocean
4.
Producers convert _____________ in the atmosphere into carbohydrates during photosynthesis.
a)
oxygen
b)
carbon dioxide
c)
nitrous oxide
d)
phosphorus
5.
Carbon molecules may form deposits of coal, oil, or natural gas, which are also known as __________________
a)
sinkholes
b)
greenhouse gases
c)
limestone pockets
d)
fossil fuels
6.
Nitrogen makes up _____% of the gases in the atmosphere.
a)
21%
b)
35%
c)
78%
d)
89%
7.
Plants absorb phosphates in the soil through their ___________
a)
leaves
b)
stems
c)
chloroplasts
d)
roots
8.
Phosphorus may enter soil and water when rocks ______
a)
build up
b)
oxidize
c)
erode
d)
evaporate
9.
Excessive amounts of fertilizer can enter terrestrial and aquatic ecosystems through _________________
a)
runoff
b)
evaporation
c)
transpiration
d)
photosynthesis
10.
Excess nitrogen and phosphorus can cause rapid ________________________________.
a)
dehydration of plants
b)
algae growth
c)
deforestation
d)
cellular respiration
100 %
