A student run10m/s what does it means

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

What is the difference between an igneous, sedimentary and metamorphic rock

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 %.