Answer:
Igneous intrusions form when magma cools and solidifies before it reaches the surface.
Explanation:
The temperature of the magma was dropped to low for it to continue moving and hardened where it was
the answer is d due to divergent plate boundaries
Mitochondria is the organelle
The answer is play on words, or a pun - a row of large animals separating two yards is called an elefence.
The first part of the word, ele-, obviously refers to elephants, which are large animals. The second part is a fence, which separates two yards. So this is intended to have a humorous effect.