PLZ HURRY I HAVE TO FINISH MY HOMEWORK IF I WANT TO GO HORSEBACK RIDING TOMORROW The amount of nitrogen added to the atmosphere through denitrification is .
the amount of nitrogen taken from the atmosphere through nitrogen fixation.
A.) greater than
B.)less than
C.) equal to

biology is the study of life. it is the study of living organism.

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.

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what are the awnser choices? i mean, without choices, it is an incompleat