As the human population grows and as the average rate of resource use per person rises, water shortages in many parts of the world are becoming more severe and, thus, more of a global concern. It is predicted that humans will have no cholce but to reduce their water footprints in the near uture. A water footprint is an estimate of how much water it takes each year to meet the needs of a person, a population, or a country. Currently, the total water footprint of U.S. citizens is 2,487 cubic meters per year per capita (m³/yr/ca). This is equivalent to 657,000 gallons/yr/ca, or more than 16,000 pathtubfuls of water per yeart From what you know about water footprints, which of the following makes up the majority of the average American's water footprint? O Water used in washing machines O Water used in the production and delivery of food and consumer goods O Water consumed from using household toilets and showers

What is one limitation of using a saltwater aquarium to model the ocean?

A space shuttle carrying humans and science experiments contains an air ratio similar to (but not the same as) Earth: 77% of the air is a mix of N2 and Ar. The rest is O2. The total cargo volume of space shuttle's air is 25,400 L. What volume of oxygen is in the space shuttle? Group of answer choices 9,030 L 5,840 L 19,650 L 2,920 L 11,680 L       Flag question: Question 6

figures 1 b, c, e, and f. What do these figures show for the change in energy use and reduction in PM mortality? (in short)

John Snow, an English physician, has observed that disease is becoming more prevalent in a local neighborhood and he wants to know why. He collects information about the local people, including how many family members contracted the disease and where they live. John discovers that the disease is most common in homes located closest to the town’s water pump. John contrives an explanation: that the illness is waterborne and people are contracting the disease from water they retrieve from the town’s water pump. After petitioning the authorities, the handle at the pump is removed. John collects data about disease incidence and finds that occurrence of the disease is greatly reduced. John concludes that the water from the pump was causing the illness.   What step(s) of the scientific method is/are missing from Data Table 1? Describe each and propose a way that they might be fulfilled in the scenario?

The number of bats in a colony is growing exponentially. After 2 years, there were 120 bats. After 5 years, there were 960 bats. If the colony continues to grow at the same rate, how many bats are expected to be in the colony after 8 years? Do not include units in your answer.