Скласти речення з поданих слів: 1) Scientists, today, many, a lot of, do, research. 2)Energy, for, must, atomic, purposes, only, be, peaceful, used. 3) Reactors, nuclear, much, all, of, making, over, devote, time, to the problem, lighter, scientists, the world. 4) Nature, changes, and, physical, take place, in chemical, thousand of.

1)A lot of scientists do many research today.
2)Atomic energy must be used only for peaceful purposes
3)Scientists over the world devote much of time making lighter nuclear reactors
4)Thousand of nature changes take place in chemical and physical