Carbohydrates are useful for a fast source of energy

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

What was the land like over 500 million years ago? what was under the sea?

How does deforestation affect the water cycle? a. it increases the amount of runoff b.it increases the amount of percolation c. it increases the amount of transpiration d. it increases the amount of precipitationa it increases the amount of runoff