The force that causes air to move into the lungs during inspiration is supplied by:

Aseries of connections of food chain in an ecosystem is called a what

What are chlorofluorocarbons made of

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?