Question 1

Mercury, Venus, Earth, and Mars are referred to as _____________ planets.

Accepted Answer

The answer of Mercury, Venus, Earth, and Mars are referred...

Question 2

The two primary materials that geologists use as clues to understand Earth's past are ____________________ and ____________________.

Accepted Answer

The answer of The two primary materials that geologists use...

Question 3

When the universe originated, it was composed of 100% ____________________ and ____________________, but now consists of ____________________% hydrogen and 2% ____________________ elements.

Accepted Answer

The answer of When the universe originated, it was composed...

Question 4

The solid upper mantle and the overlying crust is referred to as ___________.

Accepted Answer

The answer of The solid upper mantle and the overlying...

Question 5

Theories are formed via a process called _______________.

Accepted Answer

The answer of Theories are formed via a process called...

Question 6

Assemblages of mineral(s) are generally referred to as ______________.

Accepted Answer

The answer of Assemblages of mineral(s) are generally referred to...

Question 7

The material in Earth's inner core is ____________________, while the outer core is ____________________.

Accepted Answer

The answer of The material in Earth's inner core is...

Question 8

Earth formed ____________________ billion years ago.

Accepted Answer

The answer of Earth formed ____________________ billion years ago....

Question 9

The crust and the underlying uppermost mantle make up the ____________________.

Accepted Answer

The answer of The crust and the underlying uppermost mantle...

Question 10

Substances that are naturally occurring in a solid state, with a definite or a range of chemical composition and definite crystalline structure are called _____________.

Accepted Answer

The answer of Substances that are naturally occurring in a...

Question 11

The scientific theory for the origin of our solar system, involving the condensation and collapse of interstellar material in a spiral arm of the Milky Way galaxy, is the ____________________ theory.

Accepted Answer

The answer of The scientific theory for the origin of...

Question 12

The two types of crust are ____________________ and ____________________.

Accepted Answer

The answer of The two types of crust are ____________________...

Question 13

Which of the following statements about a scientific theory is not true?
A) It is an explanation for some natural phenomena.
B) It has a large body of supporting knowledge.
C) It is testable.
D) It is conjecture or guess.
E) none of the above

Accepted Answer

A scientific theory is much more than a guess or conjecture. It is a well-substantiated explanation of some aspect of the natural world that is acquired through the scientific method and repeatedly tested and confirmed through observation and experimentation.

Question 14

A combination of related parts that interact in an organized fashion is a(n) ____________________.

Accepted Answer

The answer of A combination of related parts that interact...

Question 15

The three eras that have taken place since the end of the Precambrian from oldest to youngest are the ____________________, ____________________, and ____________________.

Accepted Answer

The answer of The three eras that have taken place...

Question 16

Earth's human population reached ____________________ in 2011 and is projected to be ____________________ in 2045.

Accepted Answer

The answer of Earth's human population reached ____________________ in 2011...

Question 17

Jupiter, Saturn, Uranus, and Neptune are referred to as _____________ planets.

Accepted Answer

The answer of Jupiter, Saturn, Uranus, and Neptune are referred...

Question 18

The theory that modern-day organisms are related and happen to have descended with modifications form organisms living in the past is called the theory of _____________.

Accepted Answer

The answer of The theory that modern-day organisms are related...

Question 19

Global warming is caused by increased concentrations of ____________________ in the atmosphere.

Accepted Answer

The answer of Global warming is caused by increased concentrations...

Question 20

The explanation present is the key to the past is referring to the principle of _____________.

Accepted Answer

The answer of The explanation present is the key to...

Quiz 1: Understanding Earth: a Dynamic and Evolving Planet

Mercury, Venus, Earth, and Mars are referred to as _____________ planets.

The two primary materials that geologists use as clues to understand Earth's past are and .

When the universe originated, it was composed of 100% and , but now consists of % hydrogen and 2% elements.