Solar panels are kind of black panels that conserve the sun light sometime you can see them on houses or in a empty fields they are quite common, I hope this will help. It would help to do some research just remember not to copy word for word as this is called plagiarism and is illegal and the teacher won't accept it :)
I believe it is the last choice hopefully you get this right...
Hope this helps...
Chromosomes is the DNA that made up humans, we need 46 chromosomes to create a new life human. The male have the x and the y chromosome and the female have 2 x chromosomes. Each one have 23 chromosomes.
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