C. and the explanation is i just know
Activation energy is required to start a chemical reaction. Activation energy is the energy needed to allow the reactant to react. Activation energy is measured in Joules (J).
Answer:
ecosistema terrestre es una comunidad de organismos y su ambiente que ocurre solo en masas de tierra, como continentes o islas. Ecosistemas terrestres. Tundra. Taiga. Bosque templado
