L7 - Better hare than gone

Question 1

What does vegetation emit during photosynthesis?

Answer 1

Oxygen

Question 2

Fill in the blank:

Vegetation acts as a __________ sink.

Answer 2

carbon

Question 3

Aerobic equation respiration

Answer 3

oxygen + glucose —–> carbon dioxide + water (+energy)

Question 4

Photosynthesis equation

Answer 4

carbon dioxide + water (+ light energy) → glucose + oxygen

Question 5

What is the temperature range in tundra?

Answer 5

Highs of 12 degrees, and night time temps of -50 degrees, mean only 3 month growing seasons.

Question 6

What is rhizodeposition?

Answer 6

When plant roots secrete chemicals that help bacteria draw down nitrogen for plant growth.

Question 7

What are some ways methane is released into the atmosphere?

Answer 7

Permafrost melt.

Plant and animal decomposition.

Question 8

Fill in the blank:

Low night temperatures mean low ____________

Answer 8

respiration

Question 9

Fill in the blank:

The carbon sink has been growing over the last _________ years

Answer 9

6000

Question 10

Fill in the blank:

Forest fires remove leaf litter and water for ____________

Answer 10

decomposition

Question 11

Animals release ____________ during digestion and excretion?

Answer 11

methane

Question 12

What does vegetation take in during photosynthesis?

Answer 12

Carbon dioxide