The advantage maps know potical maps. weather forecast identify. Boder maps
Answer: A) this means the rock formed at the time when different plants and animals were alive.
Explanation:
waterfalls are temporary features of rivers because stream erosion is greatest at waterfalls and rapids. The water that falls at the base of the waterfall erodes rock there, leaving the rock at the tops of the waterfalls to overhang. Overall, undermining causes waterfalls to recede farther upstream.
I believe your answer is the year 2020
