Which of the following is caused by pollutants from farm runoff, feedlots, or septic tanks? (2 points)

The table below shows the data collected by a student about the number of gallons of water wasted per year by a leaking faucet. Faucet leaking rate (drips per minute) 5 10 20 30 60 Water wasted per year (in gallons) 173 347 694 1,041 2,082 Based on the table, which of these graphs would best help to calculate the number of gallons of water wasted per year by a faucet leaking at the rate of 40 drips per minute? (3 points)

The table below shows some surface features and processes.   1 2 3 4 Surface Features Caves Sinkholes Geysers Hot Springs Process responsible for formation Physical and chemical actions of groundwater Dripping of groundwater from the ceiling of an underground cave Chemical reaction between limestone and acid in groundwater Global warming leading to rise in temperature of surface water Which column in the table correctly matches a surface feature with the process responsible for its formation? (3 points)

The picture below shows a person exploring an underwater cave in Florida. The underwater cave was most likely formed because of (3 points)

The graph below shows the trends in water use in the United States from 1950 to 2000. Based on the graph, a student would most likely conclude that, from 1950 to 2000, the total amount of water used for irrigation is approximately (3 points)

The table below shows the salmon population, in thousands of pounds, in Columbia River, from 1870 to 1950. Year Salmon population (in thousands of pounds) 1870 10,200 1890 20,000 1915 20,500 1931 30,000 1950 10,000 Based on the table, which of these is most likely the period during which a series of large hydropower units were built on the Columbia River? (3 points)

During which of the following stages of thunderstorm development does precipitation begin? (2 points)

Which of the following is measured using the Enhanced Fujita scale? (2 points)

The water in a location is tested regularly to identify contaminants. The nitrate levels in the water from 1994 to 1997 are shown in the table below. Years Nitrate level in water (in mg/L) 1994 8.5 1995 12.2 1996 9.7 1997 7.3 Which of these conclusions is most likely correct about the people in the location? (3 points)

Which of these processes describes the effect Earth’s atmosphere has on Earth’s geosphere? (2 points)