De Anza College Volcanic Glass Crystalline Structure and More Questionnaire

A volcanic glass (like obsidian) is not considered a mineral because ___________.

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Question 2 3 pts

The coalescing (coming together) of rocks, dust, other debris that led to the formation of the Earth is called:

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Question 33 pts

Water with a high salt content is more dense than water with a low salt content.

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Question 43 pts

Rocks that have a lot of SiO2 are usually ______in color and are called _______.

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Question 53 pts

As water warms it becomes more dense.

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Question 63 pts

The focus of an earthquake is

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Question 73 pts

The largest difference between high and low tide occurs …

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Question 83 pts

Concern about the greenhouse effect stems from

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Question 93 pts

Seismic waves which travel only along the Earth’s exterior

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Question 103 pts

What causes the lowering of the water table?

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Question 113 pts

Warming ocean temperatures may result in which of the following?

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Question 123 pts

Surface collapse in a region of karst topography produces

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Question 133 pts

As water evaporates from the oceans…

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Question 143 pts

Magnetic Polarity “Stripes” on the sea-floor occur because ________.

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Question 153 pts

Magma with the greatest capacity for trapping gases is _______.

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Question 163 pts

Liquefaction is

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Question 173 pts

Earthquake-related hazards include all of the following except

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Question 183 pts

New Orleans is susceptible to future flooding because…

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Question 193 pts

Concerns about greenhouse-effect heating relate not only to possible changes in temperature, but also to possible changes in precipitation patterns.

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Question 203 pts

When two continental lithospheric plates converge, what type of plate boundary will result?

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Question 213 pts

In 1989 as in 1906, earthquake damage in San Francisco was most severe in areas underlain by fill, as in the Marina district.

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Question 223 pts

Which of the following will cause relative sea-level change?

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Question 233 pts

A very symmetric volcanic structure built of pyroclastics is a __________.

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Question 243 pts

The largest volume of fresh water is stored in which reservoir?

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Question 253 pts

A disadvantage of desalination is:

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Question 263 pts

The time elapsed between the arrivals of the P- and S-waves at a seismograph is in indication of the

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Question 273 pts

Darcy’s Law

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Question 283 pts

Porosity is that portion of a geologic material where groundwater can be stored.

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Question 293 pts

A greenhouse gas in one that

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Question 303 pts

The effects of an earthquake on humans and their structures are measured as the

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Question 313 pts

Ocean circulation is driven by _________ and ________.

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Question 323 pts

Alfred Wegener’s hypothesis of continental drift was not accepted by the scientific community because:

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Question 333 pts

Removal of natural vegetation can result in which of the following?

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Question 343 pts

A circular lowering of the water table around a well is

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Question 353 pts

An igneous rock that formed as magma cooled below the surface of the Earth is called ________ and will have ________crystals than one that formed as lava cooled above the Earth’s surface.

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Question 363 pts

Plate boundaries are located, in part, by the occurrence of linear belts of volcanoes and earthquakes.

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Question 373 pts

Which process removes carbon dioxide from the atmosphere?

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Question 383 pts

Which is NOT true of permeability?

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Question 393 pts

Clastic sedimentary rocks are those that formed from

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Question 403 pts

Flood plains result from which of the following?

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Question 413 pts

The lowest point that a stream flows to is called _______

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Question 423 pts

According to plate-tectonic theory, plates of rigid, elastic __________ move over a weak layer below.

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Question 433 pts

Uncertainty in projecting probable greenhouse-effect heating arises from uncertainty about

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Question 443 pts

Land subsidence results from an increase in porosity in the geologic materials.

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Question 453 pts

What is the Big Bang Theory?

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Question 463 pts

Deep in the crust, at elevated temperatures, rocks may behave plastically and undergo folding or flow.

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Question 473 pts

What is the name for the drowned edge of a continent?

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Question 483 pts

Most stratovolcanoes are located at which plate boundary?

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Question 493 pts

Convection in the mantle occurs because____________.

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Question 503 pts

A seismic gap is

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Question 513 pts

Due in part to the increase in Carbon Dioxide in the atmosphere, global temperatures will continue to increase and our oceans will become more acidic leading to the deterioration of coral reefs and many marine organisms.

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Question 523 pts

The outer edge of a meander, where material is being eroded, is a(n) ____________.

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Question 533 pts

A volcano built of many thin flows of fluid lava is a

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Question 543 pts

Magmas rich in silica

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Question 553 pts

A hot, rapidly moving cloud of gas and ash produced by a volcanic eruption is known as a

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lahar.

Question 56 35 pts

List and describe 5 things you can (and are willing to do) that will contribute to a reduction in anthropogenic climate change. Create a numbered list of your answers. Your answers should be specific to you and should be actionable, meaning you have indicated specifically how you will accomplish this or what it will look like in your life. Be thoughtful and honest in your response. Ideally, you are creating a list of things that you will actually implement!

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