Ineed on earth science !
1.which of the following statements about uniformitarianism is correct?

a. geological processes occurring today have always occurred in the past.
b. geological processes have changed throughout the earth's history.
c. features on the earth's surface formed as they appear today and have never changed.
d. geological processes have stopped completely at different points in time.

2.what tests were able to determine when continental crust was formed?

a. stratigraphic measurement and argon-aluminum dating
b. stratigraphic measurement and strontium-rubidium dating
c. potassium-argon dating and half-life isotopes
d. relative dating and carbon-prototyping

3.why is open pit mining so devastating to the environment?
( cant be 'c' already tried it)
a. it completely removes any available topsoil.
b. it causes massive erosion of sand.
c. it releases a lot of carbon dioxide into the air.
d. it exposes dangerous chemicals buried in the earth's crust.