Best answer gets ! which table best shows the impacts resulting from human activity? a.) forest area cleared to construct an airport = increase in oxygen level a.) vegetation cleared to construct an oil mine = increase in pollution b.) forest area cleared to construct an airport increase in sound pollution b.) vegetation cleared to construct a power plant contamination of water c.) beehives cleared from urban areas = increase in vegetation c.) dams constructed on a river = increase in fish population d.) beehives cleared from urban areas = increase in bird population d.) dams constructed on a river = better quality of water

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.

What was darwins theory of common decent