Louis Pasteur made several major contributions to microscopy. Which was a discovery or invention made by someone other than Pasteur? 1. He was the first to view a bacterium.

2. He proved microorganisms cause fermentation and disease.

3. He developed a process to make cow’s milk safe to drink.

4. He created vaccines against rabies and anthrax.

Where is the energy in a sucrose molecule stored? o a. inside the hydrogen atoms o b. inside the carbon atoms o c. in the bonds between the atoms o d. inside the protons

Why are small quantities of chlorofluorocarbons so harmful to the ozone layer? a. the chlorofluorocarbons act like ultraviolet radiation causing large amount of ozone to be produced. b. the chlorine from the chlorofluorocarbons reacts with free molecules of oxygen causing a stop in ozone production c. free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine which can then recombine with an oxygen atom in ozone, destroying more ozone. d. chlorofluorocarbons absorb ultraviolet radiation, preventing the formation of ozone select the best answer from the choices provided

Which table best shows the impacts resulting from human activity? impact of human activities human activity impact forest area cleared to construct an airport increase in oxygen level vegetation cleared to construct an oil mine increase in pollution impact of human activities human activity impact forest area cleared to construct an airport increase in sound pollution vegetation cleared to construct a power plant contamination of water impact of human activities human activity impact beehives cleared from urban areas increase in vegetation dams constructed on a river increase in fish population impact of human activities human activity impact beehives cleared from urban areas increase in bird population dams constructed on a river better quality of water