Что обозначает цифра 7 в записи числа 17003

Для чего надо изучать природу?(надо 1 предложение) 2 класс.

За счет чего повышается температура воды при термическом загрязнении вод?

Очень нужно!!!

Fill in the blanks with the prepositions or adverbs: to, off, with, on, at, for, of, up

... six or seven o'clock we turn ... our TV-set. "What is ... to­day?" my little brother Bill likes to ask me.

Mother doesn't allow Bill to see all the programmes, and he is sometimes angry ... us. ... course he likes to see the children's programme, but that is not enough ... him. As you know, Bill is a little boy and he goes ... bed ... nine o'clock. When the programme is over and we turn ... the TV-set, little

Bill is already asleep. He gets ... eight o'clock. As for me, I go ... bed ... ten and get      seven.