Answer:
If sounds as if it refers to his aching agony within his situation. ¨Bear up, old heart! You´ve borne worse, far worse,¨ shows how everything is affecting him. This is his attempt to tell himself to stay strong in time of dispair.
Explanation:
Answer:
1.The equipment is broken by someone.
2.Firstly the liguid must be heated.
3.Safety glasses must be worn in laboratory.
4.Science competition is won by a very young student.
5.A brilliant scientist is Dr liu .( this 5 no ans might be wrong)
