Answer: Hydrogen
Explanation:
Because it is the element that everything is created with it is everywhere. All life has hydrogen in it, our air, SPACE, everything.
Answer:
how a freshwater ecosystem, such as a pond, can change into a terrestrial ecosystem.how a freshwater ecosystem, such as a pond, can change into a terrestrial ecosystem.how a freshwater ecosystem, such as a pond, can change into a terrestrial ecosystem.how a freshwater ecosystem, such as a pond, can change into a terrestrial ecosystem.
Explanation:
There are no terms just to let you know.
