How do plants contribute to the water cycle?

What happens to water at the ocean’s surface as it moves from the equator toward the Arctic Ocean?

How can people be good stewards of water resources?

How is geothermal energy classified?

Permafrost is created when the water in the ground freezes and remains frozen year-round. Alaska has permafrost that has remained frozen for at least 12,000 years. Scientists have discovered that this permafrost contains powerful greenhouse gases, and the permafrost releases these gases to the atmosphere as it melts. What relationship might exist between global climate change and this permafrost?

A community uses a hydroelectric dam to generate electricity. The dam’s reservoir also flows into a water treatment plant to make the water suitable for human consumption. Suppose a drought were to occur in this community. What benefit would there be in conserving the water people use in their homes?

Jody learns that water moving over the falls formed the cave. Which choice best explains how the cave formed?

At the Timber Falls visitor center, Jody learns trilobite fossils can be found in the shale rock layer. Trilobites are extinct invertebrate organisms that lived in the ocean. On display is a fossil of the trilobite species Dalmanites limulurus. Members of the genus Dalmanites existed on Earth between 450 and 415 million years ago.

Jody notices a fossil of a dinosaur, Stegosaurus, discovered in the dolostone layer of Timber Falls. What can Jody conclude about when Dalmanites and Stegosaurus lived?

Jody finds a rock at the bottom of the falls. She suspects that this rock originated from the rock layers at Timber Falls. What evidence could show what type of rock she has found?

Jody claims that moving water at Timber Falls caused the shale layer to weather. What evidence could be used to support her claim?

Select (click) two factors that explain why the limestone in this region weathers faster than the dolostone.

Jonathan lives in a town near an estuary. The estuary is a part of the Windy River basin. The table below shows average and 2018 monthly rainfall amounts from June to September for Jonathan's town.

Xavier learns that aquatic bacteria decrease the lake’s dissolved oxygen content as they grow and reproduce. How could Xavier revise Figure 1 to better represent an effect of an increase in aquatic bacteria?

Under normal conditions, how do the algae in Calm Lake contribute to the cycling of matter?

Which choice best describes the amount of nutrient pollution in Calm Lake from Day 25 to Day 30?

Use Figure 2 and Figure 3 to answer this question: What does the change from Day 9 to Day 10 indicate?

A fish population lives in Calm Lake. The lake water is considered unsafe for these fish if the dissolved oxygen content drops below 6 milligrams per liter of water. What does Figure 3 show about the safety of Calm Lake for these fish?

Scientists used atmospheric temperature data from 1901 to 2000 and determined that the average global temperature, over both land and ocean, in the month of April was 13.7°C. To measure changes in climate, scientists compare a year’s average April temperature to 13.7°C. The graph below is a collection of thesemeasurements from 1960 to 2023. In the graph, a positive temperature measurement indicates that April of that year was warmer than 13.7°C. A negative measurement indicates it was colder than 13.7°C. Which choice is the best interpretation of the graph?

A person has recently started riding a bike to work instead of driving a gasoline-powered car. How will this action affect the availability of fossil fuels?

Suppose a large coal reserve is discovered on a mountaintop. The coal is extracted using a strip mine, where  the topsoil is removed by large trucks and  rocks are cleared by blasting with dynamite. A town exists at the foot of the mountain. How will this strip mine affect the environment?

Olivia finds two dinosaur fossils in a museum:  Apatosaurus fossil: 150 million years old  Diplodocus fossil: 154 million years old What evidence would show these organisms share a common ancestor?