Появлением многих материалов и веще

Появлением многих материалов и веществ мы обязаны именно химикам. Можно с уверенностью сказать, что если бы развитие этой науки остановилось бы на определённом этапе, то население планеты в наше время было бы в десятки раз меньше, поскольку большинство людей умерло бы от болезней, лекарства от которых так и не были придуманы, так как никто не сделал нужные исследования.

Результаты (английский) 1:

The advent of many materials and substances that we owe the chemists. It is safe to say that if the development of this science would have stopped at a certain stage, the population of the world in our time would be ten times less, as most people would have died from disease, drugs that have not been invented, because no one has done the necessary research.

Результаты (английский) 2:

The emergence of many materials and substances we owe it to chemists. It's safe to say that if the development of this science would stop at some point, the population of the planet in our time would be ten times less, as most people would have died from the disease, medicines which have not yet been invented, because no one did not do the necessary research.

Результаты (английский) 3:

The many materials and substances, we have an obligation that is took. It can be said with certainty that if the development of this science has stopped would be at a certain stage,The majority of the population of the world in our time, it would be in the tens of times less, since the majority of the people would have died from disease, medicines from which were not popping, as no one has made the desired study.