Four people are spaced at different distances from where a dog is barking. The barking will sound the loudest to the person who is standing
4 m away
o 15 m away
0 1 m away
O 12 m away

Which describes how weathering and erosion are different? weathering is caused by water. erosion is caused by wind and ice. erosion transports sediments. weathering is a natural process.

9. the history of life on earth is recorded in

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%