Match the careers in chemistry.
1. sales technician
2. theoretical research legal services
3. quality of life corporate management
4. finds practical applications information chemist
5. manufacturing environmental engineer
6. market research r& d
7. short and long term objectives marketing
8. patent rights production
9. services equipment product development

1. sales / marketing 

2. theoretical research / information chemist 

3. quality of life /environmental engineer 

4. finds practical applications / R&D 

5. manufacturing /production 

6. market research /product development 

7. short- and long-term objectives /corporate management 

8. patent rights /legal services 

9. services equipment /technician 

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.