How did we determine that mutations are random

If vegetable oil is made out of veggies, then what is baby oil made out of?

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase

At which location in earth’s interior does the top density continue to increase as thickness decreases?