Question

integrated science
name
cycles worksheet
please answer the following using the words in the text box.
carbon cycle
coal
oil
natural gas
burning of fossil fuels
volcanoes
photosynthesis
respiration
ocean
sugar
greenhouse
decayed

1. plants use co₂ in the process of blank to make blank and blank
2. animals use oxygen in the process of blank and make more co₂.
3. the blank is the main regulator of co₂ in the atmosphere because co₂ dissolves easily in it.
4. in the past, huge deposits of carbon were stored as dead plants and animals blank.
5. today these deposits are burned as fossil fuels, which include blank, blank, and blank.
6. more co₂ is released in the atmosphere today than in the past because of blank.
7. another natural source for co₂ is blank.
8. too much co₂ in the atmosphere may be responsible for the blank effect.
9. write the equation for photosynthesis.

Explanation:

The questions relate to the carbon cycle, a key topic in environmental science. Answers are based on core processes and components of the cycle.

Answer:

1. Photosynthesis; sugar; oxygen
2. Respiration
3. Ocean
4. decayed
5. Coal; Oil; Natural Gas
6. burning of fossil fuels
7. volcanoes
8. Greenhouse
9. $6CO_2 + 6H_2O \xrightarrow[\text{light}]{\text{chlorophyll}} C_6H_{12}O_6 + 6O_2$