Переведите предложения на русский язык. Определите грамматическое время и залог глагола-сказуемого.1. Matter is constantly undergoing changes.2. Forms of matter may change, but matter itself is neither destroyed nor created.3. Newton's Law of universal gravitation is applied to matter in general.4. As a matter of fact Robert Brown observed the movement of small solid particles in liquid quite unexpectedly.5. The solution of this problem is a matter of time.6. Numerous experiments have shown that the composition of every chemical compound is constant no matter how, where and of what it has been prepared.7. The results of their experiments were referred to at the conference.8. Matter occupies space and it possesses mass.