SC. S.L.18.3 SSA Connection:
1. Which of the following processes would be most likely to release carbon dioxide into the
environment?
A. building a wooden house
B. growing trees in the yard
c. burning wood in a campfire
D. chipping up wood for mulch
2. Fossil fuels such as natural gas and petroleum contain carbon. How did the carbon get into the
fossil fuels?
A. It migrated into them from the rocks in which the fossil fuels are found.
B. It seeped out of coal buried near the fossil fuel deposits underground.
C. It was in the air that was trapped underground when the fossil fuels formed.
D. It was once part of the organisms from
which the fossil fuels formed.
3. Which of the following is NOT a way carbon dioxide returns to the atmosphere?
A. decay of organisms
B. emissions by factories
C. photosynthesis
D. respiration
4. Lin's science fair project is on the effects of carbon dioxide levels on plant growth. Lin's
hypothesis is "if more carbon dioxide is present, then the plant will grow faster. Each test plant is
placed in a clear container, and Lin exhales different amounts of carbon dioxide into the
containers. She collects data every 3 days for 2 weeks and records it in a data chart, as shown
below. Based on the data from Lin's experiment, which statement supports her hypothesis?
Test Group
Initial Height in Height in Height Height in Height
3 Days
Height
6 Days In 9
in 15
12 Days
Days
Days
5.0 cm
Control (no bag:
7.2 cm
5.5 cm 6.5 cm
regular air
supply)
5.7 cm 5.8 cm
5.8 cm
5.8 cm
5.5 cm
5.0 cm
Zero Breaths
Exhaled
7.2 cm
7.5 cm
6.8 cm
6.0 cm
8.0 cm
5.0 cm
10 Breaths
Exhaled
8.7 cm
7.2 cm 8.0 cm
9.3 cm
5.0 cm 6.1 cm
120 Breaths
Exhaled
A. Increased carbon dioxide supplies more oxygen to the plant.
B. Decreased carbon dioxide allows for more energy production.
C. Decreased carbon dioxide supplies allows for more water consumption.
D. Increased carbon dioxide supplies carbon to increase sugar production.
6.8 cm
7.5 cm