Answer:
percentage of error= (3.4-31.)/(3.1)*100%=9.68%
Explanation:
Answer:
Cool dense water sinks to the ocean floor.
Warm water replaces cool surface water.
Wind blowing parallel to the shore causes upwelling of cool water.
Discovery of structure of DNA by Franklin and Watson and Crick.
Explanation:
Rosalind Franklin was researching about DNA structure at the King’s College at London based on x-ray diffraction studies; while, Crick and Watson were researching on the same at the Cambridge University based on Linus Pauling discovery of proteins.
Once when Watson happen to listen to Franklin’s lecture upon DNA structure and how it depends on relative humidity of the air and other facts relating to DNA; he along with Crick made physical DNA models which became a big failure.
Later, Franklin found that a wet form of DNA with high humidity had a helix like structure. This point became the base of later discovery of Watson and Crick’s double helix model of DNA along with the discovery of DNA molecules being made up of double chain of nucleotides.
Organic chemicals can enter the grond water and contaminate private wells through waste disposal etc.
Answer is C) - Nuclear power produces no carbon dioxide emissions unlike coal or oil power production.
Nuclear power use natural Uranium to make energy and water is used as cooling process. Hence, nuclear power production uses natural resources.
The waste is very harmful in nuclear power production. That should be managed by a proper way.
Although nuclear power can produce a huge energy, the availability of nuclear power is less than coal and fossil fuels.
But the greatest benefit of nuclear power is, it does not emit carbon dioxide which contributes to global warming.
