Which is true of oxidation? 1. it's a mechanical process. 2. no change occurs in the makeup of rock. 3. rock parts weather at different rates. 4. water enters cracks in water

but there is no

i guess you forgot putting it.

1. efficient use of space

2. elimination of groundwater contamination

3. energy generation

4. lower carbon footprint

explanation:

the sun shines white and black light to our planet. the white light has all the colors in it. in our upper atmosphere, we have dust particles and oxygen molecules. the white light meaning all of the colors in a rainbow shines through the upper levels of the atmopshere and the blue light scatters across the entire planet. that is why our sky is blue.