Approximately what percentage of earth’s water is fresh water? a. 97 percent b. 71 percent c. 30 percent d. 3 percent

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

Any sound above what db can cause hearing loss in human beings

What type of pollution does household garbage cause