According to the graph, which activity has used the largest amount of water over the past twenty years? Bar graph showing how human beings between 1950 and 2000 used water. Between 1980 and 2000, water used for rural domestic and livestock purposes consumed less than 25 billion gallons per day. Water used for the public supply consumed between 50 and 75 billion gallons per day. Water used in thermoelectric power plants consumed between 300 billion and 350 billion gallons per day. Water used for other industrial purposes consumed approximately 50 billion gallons per day. Water used for irrigation consumed between 200 and 250 billion gallons per day.
Public Domain

Flushing toilets
Watering livestock
Watering crops
Generating electricity

How many species of living things are alive on earth today? more than 1,000,000 none of these answers are correct 100-500 1,000 –500,000 o 500,000 -1,000,000

Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.

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.