Module 9 & 10

Question 1

Biotic factors

Answer 1

living organisms of an ecosystem

Question 2

Abiotic factors

Answer 2

nonliving components

Question 3

How do energy and matter (nutrients) move through an ecosystem

Answer 3

Matter is re-cycled through an ecosystem, while Energy comes in and out of the ecosystem

Question 4

Carbon cycle

Answer 4

• movement of carbon between atmosphere, soil, and biosphere
• affected by human activities, primarily the burning of fossil fuels, which releases trapped carbon into the atmosphere as CO2

Question 5

Greenhouse effect

Answer 5

warms the earth’s surface by trapping heat from the sun in the atmosphere

Question 6

Explain how deforestation contributes to climate change and reforestation sequesters carbon.

Answer 6

Trees store carbon that they capture from the atmosphere during photosynthesis

Question 7

Renewable energy

Answer 7

energy derived from sources that can be continuously renewed
can only be sustainable if it is consumed at a rate equal to or lower than the rate at which it can be replenished
water plants animals wind

Question 8

Non-renewable energy

Answer 8

cannot be replaced
oil, coal, natural gas, nuclear energy
once used, unavailable to future generations

Question 9

ecological footprint

Answer 9

an estimate of the area of land and water required to sustain one person, these vary by person depending on their lifestyle

Question 10

Three E’s of Sustainability

Answer 10

1. Economy
2. Equity (society)
3. Environment

Question 11

Biggest threats to sustainability

Answer 11

1. Climate change
2. Loss of biodiversity

Question 12

Climate change causes

Answer 12

• rising temps
• droughts
• ocean acidification
• land changes

Question 13

Loss of Biodiversity causes

Answer 13

• overfishing/hunting
• chemical contamination
• invasive species
• loss of genetic diversity in crops