3. Measure the speed of movement of the pill bugs and record your findings in the table below:
Pill bug
Distance traveled (mm), Time (sec)
Speed (mm/sec)
1.
2.
3.
4.
Average speed
mm sec

answer; the correct answer is desert plants;

b brown mice / white sand dunes

ya the other dude is right

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.