My parents are tall but I’m short am I adopted???

What is thought to have caused the mass extinction at the end of the cretaceous period?

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

When a gasoline engine burns gasoline, what type of chemical reaction is occurring?