Which of the following is NOT a characteristic of a mineral?
In addition to reclamation, a good way to reduce the environmental effects of mining is to
Which of the following is NOT true of minerals?
Which of the following is not a class of nonsilicate minerals?
What is a mineral deposit that is large and pure enough to be mined called?
What is the name for a nonmetallic mineral that is valued for its beauty and rarity rather than its usefullness?
In addition to silicon & oxygen, silicate minerals usually contain
The potentially harmful effects of mining can be reduced by
Which mineral is the most resistant to scratching?
Besides air & water, what can change the color of a mineral?
What occurs when minerals break unevenly along curved or irregular surfaces?
What is the color of a mineral in powdered form called?
The process in which water, wind, ice & heat break down rock is called
Which of the following processes changes rock on Earth's surface?
What forms when rock partially or completely melts?
Which of the following are ways magma is formed?
What kind of texture does igneous rock have when magma cools slowly?
What kind of rock is formed when magma melts into pre-existing rock?
What kind of rock is formed from lava that cools on the Earth's surface?
Which process forms sediment?
What are strata?
What kind of sedimentary rock is made from fossils?
What is the process called in which sedimentary rocks are arranged in layers?
How did humans use rocks in the past?
Sedimentary rock is formed through the process of
What are the main catagories of sedimentary rock?
What kind of metamorphic rock has its mineral grains arranged in planes or bands?
The process in which sediment is dropped and comes to rest is called
When shale is exposed to slight heat & pressure, what foliated metamorphic rock does it become?
What is the grain size of the igneous rock formed when magma cools quickly?
What do folds or bends in rock show?
What is one way that magma forms?
Besides heat, what else causes a rock to undergo metamorphism?
What is the largest of all intrusive igneous rock formations?
What kind of texture will a conglomerate rock have?
Besides clastic & chemical, what is the other kind of sedimentary rock?
What determines the composition of a rock?
Which of the following is NOT a way to obtain fossil fuels?
Which of the following is NOT a problem created by fossil fuel use?
What is any natural material used by humans called?
Which of the following is a renewable resource?
Natural resources that humans use to generate energy are called
The use of solar energy systems is limited by
Which of the following did NOT come from once living organisms?
Which of the following is a nonrenewabe resource?
What is reusing waste or scrap materials called?
From what do petroleum & natural gas mostly form?
Which of the following is NOT a stage of coal formation?
What is the joining of two or more nuclei to form a larger nucleus called?
Where does biomass energy come from?
According to uniformitarianism, how does geologic change happen?
Which of the following events would be a catastrophe?
What is the most common type of unconformity?
Which two methods of radiometric dating are used for rocks more than 10 million years old?
Which of the following is an example of mineral replacement?
Which kinds of temperatures will slow down an organism's decay?
Which era are we in now?
What process involves the comparison of rock layers with others in a sequence to determine its age?
Which of the following is the largest division of geologic time?
Erosion is one of the major causes of missing rock layers, known as
A fossil used to date surrounding rock layers is called a(n)
How many years of the history of Earth do geologists study?
The phrase "younger over older" could be used to remember the principle of
Which of the following do geologists use to date rock layers?
What do scientists think may have caused dinosaurs to become extinct?
What happens during radioactive decay?
How do geologists use the geologic time scale?
What can a scientist learn from studying the relationships between fossils?
What would geologists use to determine the most accurate and precise age of Earth's oldest rocks?
Global climate change may have caused the extinction of which group of animals?
Which of the following is NOT a method of absolute dating?
What do scientists know about an undisturbed sequence of rocks?
Why is the fossil record incomplete?
Which method is most useful in dating the remains of plants and animals that lived within the last 50,000 years?
Which part of an animal is most commonly preserved?