Answer is A. The reason to create such is to conduct electricity, and metal conducts electricity.
Hope this helps, Tiara
Answer:
A medium.
<h3>Explanation:</h3>
It's the material the wave is travelling through.
Answer:
Explanation:
Secondary consumers are organisms that eat primary consumers for energy. Primary consumers are always herbivores, or organisms that only eat autotrophic plants.
Carnivores only eat other animals, and omnivores eat both plant and animal matter.
