What are the two main source of energy on earth that can drive ecosystems

Ineed the definitions of all of these words nasap i will give 1o points to whoever awnsers

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

The united states produces an average of 429 billion pounds of food annually. about 133 billion pounds of that food ends up as waste.the percentage of food that the united states wastes each year is %.