As altitude (elevation) increases, air pressure . Increases

Stays the same

Decreases

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2
1 point

Which tile would represent sea level? Click the tile that would best represent sea level.

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3
1 point

Click the tile that would represent the air pressure in Dallas, GA (14.1 psi). Remember, air pressure at sea level is the bottom tile and is 14.7 psi.

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4
1 point

Click the tile that would best represent air pressure on Mt. Everest (4.6 psi). Remember, the bottom tile represents air pressure at sea level (14.7 psi) and the top tile represents space (0 psi).

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Item at position 5
5
1 point

Why can you not feel 24,000 pounds of air pushing down on you at all times?

User Response Field

12pt
Paragraph

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

Consider three unlabeled bottles, each contain small pieces of one of the following metals. - magnesium - sodium - silver the following reagents are used for identifying the metals. - pure water - a solution of 1.0 molar hcl - a solution of concentrated hno3 (a) which metal can be easily identified because it is much softer than the other two? describe a chemical test that distinguishes this metal from the other two, using only one of the reagents above. write a balanced chemical equation for the reaction that occurs. (b) one of the other two metals reacts readily with the hcl solution. identify the metal and write the balanced chemical equation for the reaction that occurs when this metal is added to the hcl solution. use the table of standard reduction potentials (attached) to account for the fact that this metal reacts with hcl while the other does not. (c) the one remaining metal reacts with the concentrated hno3 solution. write a balanced chemical equation for the reaction that occurs. (d) the solution obtained in (c) is diluted and a few drops of 1 m hcl is added. describe what would be observed. write a balanced chemical equation for the reaction that occurs.

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397