Is the umpire making an accurate call if he compares the sound of the ball hitting the third baseman’s glove to the time he sees the runner touch the base? Why or why not?

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.

you know they are heterozygous for a trait because they have it as jj or jj.