Answer:
Zinc
explanation:
The iron or steel object is coated in a thin layer of zinc. This stops oxygen and water reaching the metal underneath - but the zinc also acts as a sacrificial metal . Zinc is more reactive than iron, so it oxidises in preference to the iron object.
Explanation:
Drought, hurricane and living space are all abiotic factors in an environment. The only biotic factor here is the predators.
Answer:
It's the attractive or repulsive force between two electrically charged objects.
Explanation:
In the conduction system vsd might effect the heart