Which of the following physical properties are unreliable and not unique to a particular mineral and so must be used only cautiously when identifying minerals in the absence of scientific instruments? a. hardnessb. cleavagec. densityd. color

A parallelogram with sides 8 and 10 and an angle of measure 60

The appearance of banded iron layers in the rock record between 1.08 and 3.8 billion years ago reflect the alteration of oxygen-rich and oxygen-poor conditions in the ocean at that time. True or False

What was the name of the original Cambodian empire

What have scientists inferred about the outer portion of the earth's core by monitoring the time of arrival of P - and S-waves at monitoring stations around the world? A. It is a dense solid. B. It is liquid-like. C. It is organic material. D.

The rock cycle explains how one type of rock can become another type of rock over time. which describes a possible path in the rock cycle?

Compare the physical features of Mexico with America

What arm of milky way are we in?

Describe the formation, characteristics, and minerals present of the following rocks: -Serpentine -Green Schist -Basalt Pillow -Umber

Drought, frost, hail, wind, floods and fire in which way it can influence the vegetable farmer

A shipping crate has dimensions 4 feet by 5 feet by 4 feet. If each cubic foot of volume requires 2 bags of shipping foam, which of these is the minimum number of bags needed to fill the container?