Volcano
Magma forms when solid rock in the crust and upper mantle…
Partially melts
In which level of the atmosphere is ozone concentrated?
stratosphere
Which gas is most important for understanding the
processes that take place in the atmosphere?
Water Vapor
Which air masses influence much of the weather in North
America, especially east of the Rocky Mountains?
maritime tropical and continental polar
What are the three factors that determine how magma is formed?
A hot magma body from deeper in Earth can intrude upward and melt coastal rock.
A decrease in pressure can create magma when rock rises from Earth’s interior to the surface.
Rock that has a high water content melts at lower temperatures and is more likely to form magma.
The particles that are produced in volcanic eruptions are called..
Pyroclastic Materials
The average kinetic energy of the atoms or molecules in a
particular substance is known as
temperature
What does relative humidity indicate?
How close air is to saturation
What forms at the boundary between two different air
masses of different properties?
front
Why do volcanoes with very viscous magmas erupt the most explosively?
As magma moves upward inside a volcano, pressure on it decreases, releasing the dissolved gasses. Very fluid magmas release the gasses easily, while more viscous magma traps the gasses in pockets that increase in size over time and then explode violently.
The most explosive volcanic eruptions come from ….volcanoes.
composite volcanoes
Because of convection, the warmest air in a room
rises
Which process produces rising air when mountains push
the air upward?
orographic lifting
What happens along a stationary front?
The flow of air is neither toward the warm air mass nor
toward the cold air mass. The front stays in the same place.
Describe the troposphere,
its thermal structure, and its position in the
four layers of Earth’s atmosphere.
The troposphere is the bottom layer of the
atmosphere. The temperature in the lower troposphere
increases with altitude, and it is within this layer that
weather events occur.
A(n)….lava flow resembles the twisted braids in rope as it cools and hardens.
Pahoehoe
Which of the following is NOT a factor that controls
temperature?
Geographical position, longitude, altitude
longitude
What does the Bergeron process explain?
growth of ice crystals in clouds from supercooled water
What forms when a cold front overtakes a warm front?
occluded front
What purpose does ozone serve in our
atmosphere?
Ozone filters UV radiation. Without ozone, Earth
would be uninhabitable for many organisms.
Rhyolitic lavas are very viscous because they have a high amount of…
Silica
During the mechanism of ......, heat flows from
the higher temperature matter to the lower temperature matter.
conduction
When a solid is changed directly into a gas without passing
through the liquid state, ..... occurs.
Sublimation
A hurricane’s energy comes from
condensation of large amounts of water vapor.
The three basic cloud forms are ??,
??, and ??.
Cirrus, cumulous, stratus