Answer :D
It acts as a shield to protect Earth's surface from the Sun's harmful ultraviolet radiation.
There you go :D
Without the weakening of the shield, we would get skin cancer, cataracts, and impaired immune systems.
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Could you try to answer one of my questions pls? :D
Saturn and Jupiter are similar to the sun and aren’t solid , while Earth, Moon, and Mars are made of rock which makes it have more compositions. It’s just the way the planets were made.
Hopefully this helps you! If not I’m sorry :(
Alkynes can be reduced to<span> trans</span>-alkenes using Li(lithium) in NH₃(ammonia).
<span>Lithium is a reducing agent.
In this case product is trans-2-butene.
Reaction:
CH</span>₃<span>-C≡C-CH</span>₃ (2-butyne)<span> + 2 Li in N<span>H</span></span>₃<span> (liq) ——>
trans CH</span>₃<span>-CH=CH-CH</span>₃<span> + 2 LiN<span>H</span></span>₂ (lithium-amide).<span><span><span>
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Answer:The copper chloride did not fully dissolve in water before performing the reaction.
The mass of the copper was not measured with the same accuracy.
Not all of the copper was collected in the filter.
Not enough time was allowed for all of the aluminum to react.
There were impurities in the aluminum.