Climate science quiz 1
If greenhouse gases increase and build up in our atmosphere, what happens?
They trap more heat and global temperatures rise.
Why does cutting down trees increase global warming?
Trees soak up carbon dioxide
keeling curve
a graph which plots the ongoing change in concentration of carbon dioxide in Earth's atmosphere since 1958
What percentage of the Sun's energy is reflected back into space?
about 30%
A measure of how reflective Earth is, used to determine how much of the Sun's energy is reflected back into space is known as:
albedo
Which has a lower albedo, an asphalt parking lot or a snow-covered field?
asphalt parking lot
sources of co2 emissions
burning of gas, coal, methane and wood
Carbon dioxide,, Oxygen, nitrogen , Hydrogen, helium, Ozone ,chlorine, methane : Out of all these gases ...which ones are considered green house gases?
carbon dioxide and methane
burninf fossil fuels, coal, forests, and building causes
carbon dioxide release
the main greenhouse gasses
carbon dioxide, methane, water vapor
Which is more likely to have higher temperatures due to the urban heat island effect?
cities
when does co2 decrease and why
decreases during the summer, growing season for plants, photosynthesis occurs making plants absorb co2
why si the atmosphere and its gasses like a greenhouse
greenhouse gas traps heat like the walls of a greenhouse
human health effects of heat islands
heat cramps, exhaustion
If you want to keep your house cool all year, should you design the house roof to have a high or a low albedo?
high
how is carbon dioxide found in the atmosphere
in small amounts, absorbed by plants through photosynthesis and released by living organisms as they decay
How to reduce urban heat islands
increase vegetation and greenery, green roofs, and cool pavements
4 major impacts of heat islands
increased energy consumption, air pollutants and greenhouse gasses, bad quality of life and water quality
what is the bad side of heat island areas
increased energy consumption, increased air pollutants and green house gasses, compromised health and bad water quality.
when does co2 increase and why
increases in the winter, plants dormant season so they are not absorbing co2
Heat is radiated back to space from earth as
infrared radiation
what do scientists believe about the correlation between earths temperature and carbon dioxide
its caused because carbon dioxide is a greenhouse gas
Why are rural and suburban areas cooler day and night
less cement and are less dense
cool cars
light colored cars reflect more sunlight than dark colored cars
Benefits of heat islands
longer growing season
what gas do cows produce a lot of
methane
What is the most common gas in the atmosphere?
nitrogen
what is a cool pavement
paving materials that reflect more solar energy
carbon sinks that take co2 from the atmosphere
photosynthesis and oceans
urban greening
planting trees and vegetation provides shade and can have a natural cooling affect, trees also absorb carbon dioxide and filters pollutants from the air and the water
what are the benefits of green roofs
reduced air pollutants and energy life and improved quality of life
what happens to energy that comes off earths surface
some is bounced directly back to space and some is absorbed by the greenhouse gases in the atmosphere
Albedo can best be described as...
the amount of solar radiation reflected
albedo
the reflectivity of a surface
City temperatures are higher than country temperatures regardless of the season
true
How do heat islands form
urbanization, moist surfaces become dry and lack of greenery
What is an urban heat island
when a urban area becomes much higher in temperature than their surrounding rural areas
why is the greenhouse gas effect an important natural phenomenon
without it earth would be too cold and inhabitable
what is the temperature differnece between green roofs and traditional roofs
90%
An urban area or metropolitan area that is significantly warmer than its surrounding rural areas due to human activities.
Heat islands
