Question

help environment science

Answer 1

7.a.radiation can effect human health also..due to radiated waves of sun it can cause sunburn to us..

8.a.some animals that r extinct are dodo : a bird
dinosaurs :the big beasts etc...
they became extinct because of unsuitable climatic conditions
cocoroaches r called living fossils as their generation is coming from the time of dinosaurs..they lived in holes underground..they had no effect of living in changing conditions...


hope it helps..

Answer 2

Answer:

Sry. I can't understand your problem. I'm extremely sorry