The oldest mountain chain in the united states is the chain. a. appalachian mountain b. laurentian mountain c. rocky mountain d. pacific

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?

What do you need to use in order to work as an environmental scientist? you need to use the scientific method and__ in order to work as an environmental scientist.