Question

1. ___ a mushroom breaks down a dead tree into small pieces. what is this process called?

a. decomposition
b. cellular respiration
c. combustion
d. photosynthesis

1. ___ we burn coal and oil to make electricity. these energy sources were made millions of years ago. what are they?

a. biomass
b. primary productivity
c. combustion
d. fossil fuels

1. _ scientists want to know the total weight of all the living things in a forest. they are measuring the ____.

a. diffusion
b. biomass
c. combustion
d. primary productivity

1. ___ a car engine burns gasoline to move. this process produces heat and light. what is it?

a. decomposition
b. primary productivity
c. combustion
d. biomass

1. _ in a garden, some plants grow much faster and better than others. scientists measure how efficient these plants are at photosynthesis. this is called ____.

a. primary productivity
b. decomposition
c. diffusion
d. biomass

1. ___ which of the following processes will decrease carbon dioxide in the atmosphere?

a. cellular respiration
b. photosynthesis
c. combustion
d. decomposition

Explanation:

1. Mushrooms are decomposers that break down dead organic matter, which is decomposition.
2. Coal and oil are formed from ancient organic matter over millions of years, classifying them as fossil fuels.
3. Biomass refers to the total mass of all living organisms in a given area or ecosystem.
4. Burning gasoline (a fuel) to release heat/light is the process of combustion.
5. Primary productivity measures the rate at which plants convert energy via photosynthesis, which determines growth efficiency.
6. Photosynthesis absorbs atmospheric carbon dioxide to produce glucose, reducing its concentration in the atmosphere.

Answer:

1. a. Decomposition
2. d. Fossil fuels
3. b. Biomass
4. c. Combustion
5. a. Primary Productivity
6. b. Photosynthesis