How was the Clean Air Act of 1970 different from previous legislation aimed at reducing pollution?

A. It put regulation in the hands of the federal government.

B. It was the first law struck down by the EPA.

C. It was the first environmental protection law passed.

D. It put regulation in the hands of state and local governments.

Based on the results of this study, what questions remain unanswered? how can these questions guide future research

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

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