Answer:
Explanation:
Electricity is a flow of tiny particles called electrons which can travel through wires. This flow is often called an 'electric current'. Just like water, which can only flow down a hill, an electric current can only flow if there's something to give it a 'push'.
sorry if im incorrect
Answer: B
Explanation: Hope this helps :)
A forest ecosystem can support a limited number of bears. This is because available energy is lost from one trophic level to the next. (flies, trout, then bears)
I believe it is K or rather potassium
