D. to be structural material
Answer:
The answer is B. hope this helps
Explanation:
Answer:
C and D
Explanation:
Its possible to use telescopes during the day time.
Gamma rays were found on earth's atmosphere.
Answer:
Machines reduce the time of work hence reducing the rate of doing work ( power ).
Machines e.g pulleys carry heavy loads with a less and reasonable effort.
Machines e.g generators induce current in a limited amount of time