Corn planted in a field that has been previously planted with legumes and then plowed under is likely to be

Select the word from the list that best fits the definition process that takes place at mid-ocean ridges sea floor spreading continental drift magnetic reversal magnetic minerals fossils

What were the main components of earth’s earliest atmosphere? oxygen and ammonia hydrogen and helium oxygen and nitrogen hydrogen and nitrogen

Explain why the plants cortex would serve as the best food source for animals