Which three methods are valid for preventing further environmental damage from CO2?
2 answers:
Three methods are valid for preventing further environmental damage from CO2:
A) Removing excessive from the atmosphere through scrubbing.
B) sequester the released before it reaches the atmosphere.
D) Replace energy obtained from fossil fuels with geothermal and solar energy.
<u>Explanation</u>:
Scrubbing is a process through which we can precipitate the , these are used in Industrial exhausts to limit the
release.
Sequestration is the storage of Industrial produced by fossil fuels in an underground aquifer or any other structure for long term storage.
Solar and Geothermal energies are called as Green energy, as they do not release any green houses gases in production. They are renewable source of energies. Replacing them with fossil fuels reduces release of
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Answer:
3.03 Billion Days or 8.30 Million years
Explanation:
Given,
No. of micrometeorite impacts per day on the Lunar surface = 25000000
Impacts needed to erase a footprint = 20
Area of footprint = 300 cm²
We know that surface area of the Moon = 37.93 Million Km² =
To find: How long will it take to erase one footprint?
Using the above information,
No. of impacts per cm² per day is
No. of impacts on area of a foot print (300 cm²) per day will be,
To erase the footprint there must be 20 impacts on the area of footprint.
Time taken for impacts = 1 Day
Time taken for 1 impact is
Hence, time taken for 20 impacts will be
It would take around 3.03 Billion Days or 8.30 Million years for one of the footprints left by the Apollo astronauts to be erased.