Question

1. hank passes by a building every day on his way to school. he notices that the rock used to build the walls of the building is a different type than the rock used to build the steps. how could energy have played a role in the different rock types forming?

a energy from different sources leads to different types of rock. y inside earth melts rock into liquid rock, but energy from the sun causes rock to weather into small pie rock.
b energy caused one rock type to form, but not the other. rock th arms because of energy is a different type of rock than rock that forms without energy.
c energy changes rock in different ways, depending on the starting rock type. energy changes igneous rock into liquid rock and changes sedimentary rock into small pieces of rock.
d energy changes rock on different continents in different ways. each continent on earth has different rock that might form liquid rock or small rock pieces when exposed to energy.

Explanation:

• Option a: Energy from Earth (e.g., heat and pressure) can form igneous rocks (by melting and cooling) and metamorphic rocks. Energy from the sun (e.g., solar - powered weathering processes like thermal expansion - contraction) can cause rocks to weather into smaller pieces. This option correctly explains how different energy sources lead to different rock - related processes.
• Option b: All rock formation processes involve energy. For example, sedimentary rocks form through the compaction and cementation of sediments (which involves gravitational energy and chemical energy for cementation), so this option is incorrect.
• Option c: Energy changes igneous rock into magma (liquid rock) through melting (usually due to high - temperature energy inside the Earth). But sedimentary rocks are formed from the compaction and cementation of sediments (not just weathering into small pieces. Weathering of any rock type can produce small pieces, and sedimentary rocks form from the lithification of sediments). So this option is incorrect.
• Option d: The type of rock transformation (e.g., melting or weathering) is more related to the type of energy and the rock's properties rather than the continent. So this option is incorrect.

Answer:

A. Energy from different sources leads to different types of rock. Energy inside Earth melts rock into liquid rock, but energy from the sun causes rock to weather into small pieces of rock.