Glencoe Earth Science

Chapter 7: Weathering and Soil

Calculate Percentages

1.
Horizons are the top layer of soil that form a soil profile. The A Horizon is known as topsoil. The B Horizon has less organic matter than the layer above it. And the C Horizon is the lowest level of soil containing partially weathered rock. Use the circle graph to calculate the percentage of A Horizon found in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078617006/161752/m506_002a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>

A)43.75%
B)25%
C)18.75%
D)56.25%
2.
Horizons are the top layer of soil that form a soil profile. The A Horizon is known as topsoil. The B Horizon has less organic matter than the layer above it. And the C Horizon is the lowest level of soil containing partially weathered rock. Use the circle graph to calculate the percentage of B Horizon found in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078617006/161752/m506_002a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>

A)18.75%
B)25%
C)56.25%
D)43.75%
3.
Horizons are the top layer of soil that form a soil profile. The A Horizon is known as topsoil. The B Horizon has less organic matter than the layer above it. And the C Horizon is the lowest level of soil containing partially weathered rock. Use the circle graph to calculate the percentage of C Horizon found in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078617006/161752/m506_002a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>

A)56.25%
B)18.75%
C)25%
D)43.75%
4.
Horizons are the top layer of soil that form a soil profile. The A Horizon is known as topsoil. The B Horizon has less organic matter than the layer above it. And the C Horizon is the lowest level of soil containing partially weathered rock. Use the circle graph to calculate the percentage of A and B Horizon found in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078617006/161752/m506_002a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (2.0K)</a>

A)56.25%
B)18.75%
C)25%
D)43.75%
5.
Plants use nutrients like nitrogen, phosphorus, potassium, sulfur, calcium, and magnesium to grow. These nutrients are present in soil at different levels. A soil chemist analyzed a soil sample to determine the weights of each nutrient. Use the circle graph to determine the percentage of phosphorus in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078617006/161752/m506_004a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>

A)12.5%
B)37.5%
C)25%
D)9.375%
6.
Plants use nutrients like nitrogen, phosphorus, potassium, sulfur, calcium, and magnesium to grow. These nutrients are present in soil at different levels. A soil chemist analyzed a soil sample to determine the weights of each nutrient. Use the circle graph to determine the percentage of potassium in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078617006/161752/m506_004a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>

A)12.5%
B)25%
C)37.5%
D)45%
7.
Plants use nutrients like nitrogen, phosphorus, potassium, sulfur, calcium, and magnesium to grow. These nutrients are present in soil at different levels. A soil chemist analyzed a soil sample to determine the weights of each nutrient. Use the circle graph to determine the percentage of sulfur in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078617006/161752/m506_004a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>

A)25%
B)12.5%
C)37.5%
D)45%
8.
Plants use nutrients like nitrogen, phosphorus, potassium, sulfur, calcium, and magnesium to grow. These nutrients are present in soil at different levels. A soil chemist analyzed a soil sample to determine the weights of each nutrient. Use the circle graph to determine the percentage of calcium in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078617006/161752/m506_004a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>

A)37.5%
B)12.5%
C)25%
D)9.375%
9.
Plants use nutrients like nitrogen, phosphorus, potassium, sulfur, calcium, and magnesium to grow. These nutrients are present in soil at different levels. A soil chemist analyzed a soil sample to determine the weights of each nutrient. Use the circle graph to determine the percentage of magnesium in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078617006/161752/m506_004a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>

A)25%
B)9.375%
C)12.5%
D)3.125%
10.
Plants use nutrients like nitrogen, phosphorus, potassium, sulfur, calcium, and magnesium to grow. These nutrients are present in soil at different levels. A soil chemist analyzed a soil sample to determine the weights of each nutrient. Use the circle graph to determine the percentage of nitrogen in the sample.

<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::::/sites/dl/free/0078617006/161752/m506_004a_866621.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (3.0K)</a>

A)37.5%
B)25%
C)12.5%
D)9.375%
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Policy before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.