Which of the following is a metamorphic rock?

• schist
• basalt
• limestone
• shale

Which of the following is a metamorphic rock?

• obsidian
• granite
• gneiss
• sandstone

Which of the following is a metamorphic rock?

• conglomerate
• pumice
• obsidian
• marble

Which of the following is a metamorphic rock?

• basalt
• obsidian
• slate
• pumice

Which of the following is a metamorphic rock?

• phyllite
• shale
• limestone
• pumice

Which of the following is a metamorphic rock?

• granite
• sandstone
• quartzite
• conglomerate

When metamorphic rocks are formed, the extreme pressure is usually caused by the _______.

• gravity in the atmosphere
• collision of tectonic plates
• the fiery hot magma in the Earth's mantle
• weight of the mountains

When metamorphic rocks are formed, the extreme heat is usually caused by the _______.

• gravity in the atmosphere
• collision of tectonic plates
• the fiery hot magma in the Earth's mantle
• weight of the mountains

Sedimentary rocks are formed by ___.

• existing rocks are baked and squeezed by pressure
• small pieces of rock are compacted and cemented together
• magma or lava cools and hardens
• igneous rocks are broken into pieces

Metamorphic rocks are formed by ___.

• existing rocks are baked and squeezed by pressure
• small pieces of rock are compacted and cemented together
• magma or lava cools and hardens
• igneous rocks are broken into pieces