Match each energy source with the correct disadvantage. 1. carbon dioxide emissions cause global warming
nuclear power
2. drilling destroys habitats and ecosystems
hydroelectric power
3. dams prevent salmon from swimming upstream
coal
4. radioactive waste is dangerous to all living organisms
2
oil

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline.which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?