What does the comprehensive environmental response compensation and liability act (superfund) do ? a. it encourages businesses to keep hazardous waste sites open. b. it mandates the clean-up of abandoned hazardous waste sites open. c. it requires local governments to keep hazardous waste sites open. d. it allows local government s to close hazardous waste sites and leave them as they are.

What do lava flows made of aa indicate about the type of volcanic eruption that occurred? a. the eruption was viscous. b. the eruption was pyroclastic. c. the eruption was explosive. d. the eruption was quite. !

An organ system consists of a group of organs that performs specific functions necessary for the survival of an organism. humans have eleven different organ systems: integumentary, skeletal, muscular, nervous, endocrine, circulatory, lymphatic, respiratory, digestive, urinary, and reproductive. discuss the function of neurons, the brain and the spinal cord within the human nervous system while explaining the interrelationship of each organ.

What is the period of cell life when it is conducting