carbon
The building block of all life on Earth is...
Carbon
Layer of gasses that surround the Earth
The atmosphere
Creates the greenhouse effect
Greenhouse gases
Roughly what percent of the Sun’s rays are reflected off the atmosphere and back into outer space.
30%
____ is the long term heating of Earth’s climate since the 1850s due to human activities, which increases greenhouse gas levels in the atmosphere
Global Warming
process where carbon atoms move from the atmosphere to Earth’s surface and back through a variety of mechanisms
Carbon cycle
The atmosphere gases are held in place by what?
Gravity
Greenhouse gases are gases in the atmosphere that trap what from the Sun and send it back towards Earth
thermal energy
Roughly 20% of the Sun’s rays are absorbed by what and don’t reach the surface.
atmospheric gas
Since the 1850s, human activities are estimated to have increased Earth’s global average temperature by
over 1 degree Celsius
carbon is NOT the most common element on Earth; it is only the
4th
The composition of the atmosphere is the result of billions of years of modification by (2 things)
Living and non living things
The two most common greenhouse gases are
Water vapor and carbon dioxide
Roughly 25% of the rays reach the surface and are absorbed by the Earth as what
thermal energy
is a long term change in average weather conditions, such as temperature and rainfall at the local, regional and global levels
climate change
process that takes out more carbon from the atmosphere than it puts in
Carbon sinks
True or False: The atmosphere is composed of different gases.
True
99% of the atmosphere is
O2 and N2 gas
The thermal rays are absorbed by greenhouse gases, preventing it from doing what
escaping into space
List 4 of the environmental effects of climate change
Rising temperatures
Melting glaciers
Sea level rise
Unpredictable weather
More extreme weather
Land degradation
Changing ecosystems
Loss of biodiversity
process that puts in more carbon to the atmosphere than it takes out
Carbon sources
natural process by which the atmosphere traps energy from the Sun
Greenhouse effect
Rays of sunlight carrying what travel through space and shine on Earth every day.
radiant energy
The trapped thermal rays in the atmosphere
do what, which is the greenhouse effect.
heat the Earth
List 4 Human Effects of climate change
Food shortages
Water shortages
Malnutrition
Loss of farmland
Increased poverty
Increased disease
Mass migrations
Changing economies