Answer:
Algae produced and still produces much of the world's oxygen supply, especially in the atmosphere.
Please give brainliest.
Explanation:
This supports the continental drift idea by example: a fossil animal was in one continent and then you find it in another. This is splitting the continents.
Volcanoes change the Earth by slowly seeping and flowing over time.
Answer:
the answer is evolution i believe
Explanation:
Answer:
i think c but i might be wrong
Explanation:
