Environmental chapter 15 – Flashcards
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Climate is a description of ____________ weather conditions.
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long-term, regional
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The earth's earliest atmosphere was probably composed mainly of __________, which has/have since largely dissipated into space.
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hydrogen and helium
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Elements such as _______ were added to the Earth's early atmosphere through _____________.
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carbon, nitrogen, oxygen, and sulfur. Volcanic Emission
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Aerosols are
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tiny particles and droplets suspended in the air.
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The two main gases making up the lower atmosphere are
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nitrogen and oxygen
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The atmospheric zone where most weather events occur is the
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troposphere
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The correct sequence of atmospheric zones upward from the earth's surface is
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troposphere, stratosphere, mesosphere, thermosphere.
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The different layers of the atmosphere are kept from mixing by
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sharp temperature boundaries.
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The Ozone Hole that causes concern among scientists and the public is an ozone depletion in the
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stratosphere.
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In the diagram above, which layer has have a rapid drop in temperature with increasing altitude.
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both 1 and 3
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In the diagram above, which layer has the highest concentration of ozone.
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2
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In the diagram above, which layer has the most mixing air?
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1
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Heat in the atmosphere comes from
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solar radiation
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Isolation is a term that means
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incoming solar radiation
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albedo is a term describing the Earth's
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reflection of solar radiation
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Which of the following would have the highest albedo?
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a snowfield
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Eventually all the energy that reaches the Earth's surfaces is
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reflected or radiated back to space.
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Energy absorbed at the Earth's surface is radiated back to space in the form of?
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infrared radiation.
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Much of the ultraviolet light from the sun is absorbed by __________ as it passes through the atmosphere.
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ozone
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The green house effect in the atmosphere occurs because
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CO2, water vapor, methanol, and other gases absorb infrared radiation.
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the phenomenon causing the green effects is that _______ in the lower atmosphere selectively absorbs re radiated _______ radiation.
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carbon dioxide, methane, and other gases, infrared
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Convection currents in the atmosphere are driven by
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the different temperatures and densities of warm and cold air masses.
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When an area of the earth's surface becomes very hot, the air above it.
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warms, expands, and rises.
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when cool, dry air sinks from the upper atmosphere towards the Earth's surface, it is
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compressed and becomes warmer
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Rising, expanding air masses create a region of
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low pressure
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intense sunlight causes a band of hot, rising air laden with evaporated water near the equator. This moisture then falls because
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the rising air cools and loses its ability to hold water vapor.
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A band of desert rings the Earth at about 23 degrees north and south latitude because these are regions of
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descending, warming air.
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The Coriolis effect is caused by the
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rotation of the Earth
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Due to the influence of the ________ in the month of january your flight from Chicago to the United Kingdom will be ______ than the return trip from the United kingdom to Chicago
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Polar Jet Stream, shorter
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Monsoons occur over india when air heated over the Indian subcontinent and the Indian ocean
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is forced to rise when it meets the himalayas.
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A westward flowing wind is called a _______ due to direction _______.
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east wind, from which it originates.
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The boundary between two air masses of different temperature and density is known as a
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front
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A cold front is a situation in which cold air
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displaces a mass of warmer air.
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As a cold front advances, the warm air is forced to
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rise, cool, and release its moisture.
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Narrow, violent bands of rain and storms are characteristic of
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advancing cold fronts.
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If you see high wispy cirrus clouds with layers of other clouds in a wedge shape, you can expect _____ due to an ______.
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drizzle and cloudy skies, advancing warm front.
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Hurricanes are powered by
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heat released from condensing water vapor.
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why don't storms over land have as much energy as storms over oceans?
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convection currents are intensified by the the latent energy of condensation.
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Which of the following events is not part of the explanation of how tornadoes form?
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the air mass is set spinning by the coriolis effect
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Milankovitch cycles involve the periodic _______ and could be responsible for ________ weather changes.
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wobbling of the earth's axis and orbital shifts, cycling.
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when el nino occurs every three to seven years, a mass of warm pacific water that is usually pushed westward by trade wins
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surges back eastward toward South America
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As far as we are currently aware, who were the first people to notice the el nino southern oscillation cycle?
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peruvian fishermen
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Proponents of climate change say that given what we know about the probability of the greenhouse effect the best thing to do is
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severely cut back on production of greenhouse gases.
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How would you describe the correlation between atmospheric carbon dioxide and mean Antarctic temperature
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there is a positive correlation between the two as one increases the other increases
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at 200,000 years before present, the mean Antarctic temperature is approximately
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-4 degrees C
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How much higher is atmospheric CO2 today, than it was at its previous maximum?
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80 ppm