Match the letter of the rock/mineral picture to the correct name. Each answer is worth 1 point for a total of 20 points.

Magnetite

Calcite

Sulfur

Sandstone

Obsidian

Granite

Diamond

Conglomerate

Basalt

Mica

Fluorite

Feldspar

Gneiss

Ruby

Pyrite

Chert

Quarts

Limestone

Marble

Shale

Which sentence best expresses the differing opinions of these two book reviews?

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen

Acommon kind of mechanical weathering is called