Question

U =(2,6,8,10,12,14,16,18,20,) P=(4,8,12,16,20) then verify (p')' =P​

Answer 1

Answer:

The reason why we only see ~118 elements is because we only see the ones stable enough to observe. Anything common in nature would need to have a half-life comparable to the age of the earth (or be produced as a decay product of something else that does).

Answer 2

Answer:

the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.