science exam 12/13/18 Flashcards
what percent of the suns energy is absorbed by the earth
about half- 50%
why are wind turbines, solar panels, and geothermal considered examples of renewable energy
they are inexhaustible
lignite, bituminous, and anthracite are examples of
coal
list renewable resources
trees, solar/wind power… anything but fossil fuels
what is the most heavily used energy resource in the us today
coal
how does conserving resources pertain to the sustainability of nonrenewable resources
using less will make it last longer
process by which MINED land is returned to its original state is or better is known as
reclamation
environmentalists oppose the mining of the Antarctic mineral resources because
that environment recovers very slowly so reclamation would be long and difficult
ozone in the stratosphere is important to organisms at earths surface because ozone molecules are very strong absorbers of
uv rays that would cause mutations
what is not true about nonrenewable resources
that they are expensive, and that they don’t have the technology for it
which rock type makes a good cap rock for oil and gas reservoirs
Igneous, if not then metamorphic. def not sedimentary!!
heavy elements are split apart and this process releases energy
nuclear fission
fission is division
which gas is a green house gas that has increased in earths atmosphere partly as a result of deforestation over the last 100 years
carbon dioxide, if not then methane
where is the youngest rock layer on a rock section
the top layer
which agent of erosion is mainly responsible for the formation of the grand canyon
moving water
