Online Study Guide
Instructions
1) You
do not need to type in your name in the space in the top-left area above. The results of this study
guide will not be sent to your teacher.
2) Carefully read each question and all the answer
choices.
3) Select the correct letter from the drop-down feature to the left of each
question.
4) When you are finished, click the “Check Your Work” button in the
bottom-left corner of the page.
5) The software will grade your work, and then it will show
you the results. Note that the correct answer will be displayed beneath the questions.
6)
Keep doing the study guide over until you earn a 100 on it.
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1.
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Carefully examine the following circle graph.
Which answer choice below best matches the approximate composition of
Earth’s atmosphere? a. | (A) Nitrogen-about 90%, (B) Oxygen-about 8%, and (C)
Argon (and other gases) 2% | b. | (A) Nitrogen-about
60%, (B) Oxygen-about 18%, and (C) Argon (and other gases) 2% | c. | (A) Nitrogen-about 79%, (B) Oxygen-about 20%, and (C) Argon (and other gases)
1% |
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2.
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Two-Part Question
1) Does the pie
chart diagram below show the correct percentage composition of the Earth’s
atmosphere?
2) What are the two major gases found in the 21.9%
(other category)?
Select the best pair of answers shown
below.
a. | 1) Yes the pie chart percentages are
correct.
2) The other category is made up primarily of oxygen
and argon gas. | b. | 1) No the pie
chart percentages are not correct.
2) The other category gases
are neon and oxygen. | c. | 1) No the pie
chart percentages are not correct.
2) Most of the air in
Earth’s atmosphere is oxygen and not nitrogen. |
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3.
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Three of the
following statements about our atmosphere are correct.
Select the one WRONG statement.
a. | Nitrogen makes up the largest percentage of gas in our
current atmosphere | b. | Nitrogen and
Oxygen chemically react in our atmosphere forming a compound. | c. | Argon, carbon dioxide, and other gases make up about 1 to 2 % of our current
atmosphere |
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4.
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Which two gases make
up the greatest percentage of the atmosphere of
Earth?
a. | oxygen and
argon | b. | carbon dioxide and
oxygen | c. | nitrogen and
oxygen |
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5.
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Which of the
following statements about the gases in Earth’s atmosphere is true? a. | Earth’s atmosphere is 78% nitrogen, 21% oxygen,
along with about 1% other gases. | b. | Most of the ozone
in the atmosphere is located in the photosphere. | c. | All the gases in the atmosphere are highly reactive and are all chemically
combined. |
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6.
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The three main gases that comprise our atmosphere
are nitrogen, oxygen, and argon.
How can you know that Earth’s atmosphere is not one big compound and is
instead only a mixture?
a. | Because in a compound the gases would not combine
together to form new substances. | b. | Because the
atmosphere does not contain any compounds at all. | c. | Because nitrogen, oxygen, and argon are not chemically combined with each
other. |
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7.
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Which of the
following pie charts BESTrepresents the composition of the atmosphere of
Earth?
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8.
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Which elements make up most of the
atmosphere of Earth?
a. | water vapor and helium | b. | oxygen and nitrogen | c. | oxygen
and water vapor |
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9.
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What is the primary gas found in
portion 3 of this circle graph?a. | Argon | b. | Nitrogen | c. | Hydrogen |
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10.
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Which gases comprise sectors
one and two in the pie graph above?a. | 1) nitrogen
2) argon and other gases | b. | 1) oxygen
2) argon and other
gases | c. | 1) carbon dioxide
2) oxygen and other gases |
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