6. Read the text and answer the questions:
Today we see the world in which social, industry and political order has been greatly influenced by science. The development of science has increased man’s knowledge of nature.
Science is a sphere of people's activity. Those who are involved in science are called scientists and scholars. Scientists deal with exact and natural science, Mathematics, Physics, Chemistry, Biology, and Geography. Scholars study History, Art, Literature and Languages.
The aim of their work is to understand the fundamental laws of nature and society, to analyses and systematize the data obtained experimentally. They work hard to investigate unknown phenomena in various branches of science.
 What has the development of science increased?
 What is science?
 Why do they work hard?