Slate and phyllite are similar in appearance. How can the foliation and the shine be used to tell them apart?
What will be an ideal response?
Answer: Slate has very flat layers and is dull in appearance. Phyllite has wavy layers and has a sheen.
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Which has stronger attractions among its submicroscopic particles: a solid at 25°C or a gas at 25°C?
A. The attractions among the submicroscopic particles of the solid are much stronger-so much stronger that they hold the particles of the solid absolutely still. B. The temperatures of these two materials are the same, which means that the attractions among their submicroscopic particles are also of the same strength. C. The attractions among the submicroscopic particles of the solid must be stronger than the attractions among the particles of the gas. D. The submicroscopic particles of the gas are moving faster. This means that they have more energy, which means that the attractions among them must be stronger.
A compass is used to measure the angle of ____
A)intersection of a strike line and a dip B)dip from horizontal of a geologic structure C)90 degrees from horizontal of a strike line D)a strike slip zone with respect to the sun E)a strike line's orientation with respect to north
Ozone is concentrated in the ________
A) ionosphere B) mesosphere C) stratosphere D) troposphere
Carbon dioxide's low chemical activity ensures that it can be sequestered securely in deep underground
formations. Indicate whether the statement is true or false.