D. the earth is not on the line of nodes
Because of natural evolution , ecosystems began to form broad belts for survival .
Answer:
If Earth happens to be in the path of a CME, the charged particles can slam into our atmosphere, disrupt satellites in orbit and even cause them to fail, and bathe high-flying airplanes with radiation. They can disrupt telecommunications and navigation systems.
Explanation:
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The buildings in the San Francisco marina have been more susceptible to damage because the Marina District's structures were mostly destroyed as the liquefied earth extended laterally along the shoreline of the 1906 lagoon. This is further explained below.
<h3>Where is
San Francisco's marina?</h3>
Generally, San Francisco's marina is simply defined as the Place of Fine Arts, that until 2013 held the Exploratorium, which is the most well-known landmark in the area.
In conclusion, The Marina District's constructions were mostly damaged when the liquefied soil spread laterally along the coastline of the 1906 lagoon, making the marina's buildings more vulnerable to destruction.
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Answer:
Primary productivity = 1000 gm/year/sq. meter
Explanation:
Primary productivity is defined as the difference betweeen main gross manufacturing and breathing energy. For the herbivorous, this is the energy available.
It is expressed as "gm/year/sq. meter" = gm/yr/m^2
or "kcal/year/sq. meter" = k cal/year/m^2
In the present case,
Gross primary production = 2000 gm/yr/m^2
Used for respiration purpose = 1000 gm/yr/m^2
So, Primary productivity = (2000 - 1000) gm/year/sq. meter
Primary productivity = 1000 gm/year/sq. meter
