8.2: Matter Cycling And The Water Cycle

Question 1

Why is matter different than energy? (2)

Answer 1

• matter cycles through ecosystems

- matter is found in limited amounts, unlike solar energy

Question 2

What are biogeochemical cycles?

Answer 2

• nutrient cycles that contain both biotic and abiotic factors
• water, carbon, nitrogen, phosphorus cycle

Question 3

Why is the water cycle important?

Answer 3

• Water is essential for all life and influences the rate of ecosystem processes
• water is essential to all organisms
  (High soecific heat, floating ice, etc.)

Question 4

Which physical phase is water primarily used?

Answer 4

Liquid

Question 5

Name the percentages in which the biosphere’s water is found in the ocean, glaciers, and lakes.

Answer 5

• 97% in the ocean
• 2% in glaciers and polar ice caps
• 1% in lakes, rivers and groundwater

Question 6

What processes move water? (5)

Answer 6

• evaporation, transpiration, condensation, precipitation and movement through surface and groundwater