1. Energy flows through an ecosystem in a two-way direction.
false
true

TRUE

First it flows from the sun to autotrophs, or producers. Then it flows from producers to consumers. Energy never flows backward from consumers to producers. When you draw a food chain, always begin with energy from the sun to a producer.

Explanation:

Energy flows through an ecosystem in a two-way direction.

false

true

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.