Earth's Interior Answers

Which best describes eras and periods?

Study the diagram of the geologic time scale.Which method is most likely used to identify what happened before the start of the Paleozoic era?

Which correctly lists the three isotopes that geologists measure to determine the age of an organism’s remains?

Fran finds a dark-colored rock that she identifies as basalt. Which property gives the rock its dark color?

Which sphere of Earth includes icebergs?

Which example describes biotic factors interacting with the environment?

Which is the first step in the process during the formation of molded fossils?

Rosa drew a flow chart of the carbon cycle.

After two half-lives, how much of the original material has decayed?

A mineral forms in water heated by magma inside Earth.Which statement best describes this mineral?

Which type of rock is most likely to form because of high heat and pressure?

Which phrase describes the relative age of a rock?

Which spheres of Earth are directly influenced when human-caused air pollution leads to acid rain that dissolves limestone rocks?

During the nitrogen cycle, through which structure are nitrogen compounds first absorbed into the plant?

Several cheetahs are growling at each other while hunting for animals. For which need are they competing?

Which evidence suggests that several mass extinctions have occurred during Earth's history?

Which is a common use of minerals?

Some consumers, like lions, do not eat plants or any other producers. They only eat other animals.How do lions obtain the carbon they need?

Which correctly lists three properties that are used to identify minerals?

The diagram illustrates the water cycle.