Biology, 26.09.2021 03:40 ravensenpai423
Why was helium and hydrogen the first elements to show up in the universe?
Answers: 3
Biology, 21.06.2019 14:00
According to the law of conservation of energy, energy can neither be created nor destroyed. if this is true, why is there less energy in the top of the energy pyramid than there is in the bottom of the energy pyramid?
Answers: 1
Biology, 21.06.2019 22:30
Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials
Answers: 2
Biology, 22.06.2019 03:00
Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels
Answers: 1
Why was helium and hydrogen the first elements to show up in the universe?...
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