A glacier retreats leaving bare rocks. Lichens begin to live on the rocks the lichens produce an acid that starts to break down the rocks how will this process affect the environment

Which blood cell spend most of their time in the lymphatic system?

Why is it important to study each branch of earth science?

Asap many people try to eliminate fat from their diets which is one reason it is necessary for humans to eat fat a) fat is the only way to get energy b) every cell in the body must contain fat c)fat stores less energy than polysaccharides d) saturated fats make blood vessels healthier