Science Multiple Choice?

Question

1. Which is NOT an essential condition in a self-sustaining ecosystem?

a) equal numbers of plants & animals

b) a constant source of energy

c) the presence of autotrophic organisms

d) the cycling of materials between organisms and their environment

2)Which abiotic factor might be an important part of a grassy field environment?

a) daily and seasonal temp changes

b) the microorganism population

c) species competition

d) the number of food chains

3)Between 60 degrees latitude and the poles, surface winds tend to flow:

a) North to South

b) East to West

c) South to North

d) West to East

4) Ocean Currents are NOT

a) always the same temp as the surrounding water

b) affected by the shapes of the continents

c) started by the wind

d) influenced by the Coriolis effect

e) one of he ways that heat is transferred from the trophies to the poles

Answer 1

1. a

2. a

3. d

4. a