According to the cell theroy all cells are arise from the division of preexisting cells ture or false

true.

cell theory:

1. all licing things are composed of cells. ( or cell products)

2. the cell is the smallest unit of life.

3. cells only arise from pre-existing cells.

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.