2. most rocks are made of what elements? lithium, nitrogen, selenium, fluorine, chlorine, antimony, gallium…

2. most rocks are made of what elements? lithium, nitrogen, selenium, fluorine, chlorine, antimony, gallium, tin oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium carbon, hydrogen, rubidium, nickel, zink, copper, lead, gallium quartz, granite, marble, limestone, shale, sandstone, obsidian, mica

2. most rocks are made of what elements? lithium, nitrogen, selenium, fluorine, chlorine, antimony, gallium, tin oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium carbon, hydrogen, rubidium, nickel, zink, copper, lead, gallium quartz, granite, marble, limestone, shale, sandstone, obsidian, mica

Answer

Brief Explanations:

Most rocks are composed mainly of oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium. These are common elements in the Earth's crust that form various minerals which make up rocks. The last option lists types of rocks, not elements.

Answer:

oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium