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ESPS Final
For the Science Final
| Question | Answer |
|---|---|
| What percentage of the atmosphere is nitrogen? | 78% |
| What percentage of the atmosphere is oxygen? | 21% |
| How much of the earth is covered in salt water? | 78% |
| How much of the earth is covered in freshwater? | 21% |
| What is the percent of elements in Earth’s Atmosphere? Nitrogen Oxygen Other | Nitrogen- 78% Oxygen- 21% Other- 1% |
| What sphere is carbonate found in? | Geosp here |
| What is the usable form of nitrogen? | Nitrates |
| What is nitrogen fixation? | the chemical processes by which atmospheric nitrogen is assimilated into organic compounds, especially by certain microorganisms as part of the nitrogen cycle. |
| What is Denitrification? | the loss or removal of nitrogen or nitrogen compounds; specifically : reduction of nitrates or nitrites commonly by bacteria |
| What are 3 ways which nitrogen is fixed? | bacteria, by humans through a manufacturing process called Haber process used in fertilizer production, andthrough a chemical process initiated by lightning. |
| What causes the thermal convection that drives plate motions? | Thermal energy |
| At what point is the mantle material the coolest? | When it goes down |
| At what point is the mantle material the hottest? | When it goes up |
| At what point is the mantle material the most dense? | When it cools down. |
| At what point is the mantle material the least dense? | When it heats up. |
| What phase of water is it most dense? | liqiud |
| What phase of water is it least dense? | solid |
| What does being a polar molecule mean? | here is an uneven distribution of electron density. Water has a partial negative charge near the oxygen atom due the unshared pairs of electrons, and partial positive charges near the hydrogen atoms. |
| Why is water polar? | A water molecule, because of its shape, is a polar molecule. |
| What is surface tension? | the tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area. |
| What is specific heat? | the heat required to raise the temperature of the unit mass of a given substance by a given amount (usually one degree). |
| What is viscosity? | The resistance to flow |
| Does a thinner fluid have a higher or lower viscosity than a thicker fluid? | Thin-lower viscosity Thick-higher viscosity |
Created by:
Mily S.P
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