1. Destruction on land - Lava, Lava rocks flying
2. Pollution - The smoke in the air
3. The environment surrounding the volcano
Answer:
The prefix hetero- comes from the Greek word, héteros, and means "other, different". It is the exact opposite of the meaning of the prefix homo-.
The railroad tracks are parallel, because they go the same direction and don't intersect
Answer: 4
2x2 is 4 and that is the same thing as 2+2.