18. Which of the following is not a simple machine?
a. Hose clip
b. Can/Cork screw opener
c. mobile cellphone
d. hammer
19. It occurs when volcanic eruption is accompanied by loud rumblings and earthquake
a. aftershocks
b. intensity
c. magnitude
d. impacts
a. Hose clip
b. Can/Cork screw opener
c. mobile cellphone
d. hammer
19. It occurs when volcanic eruption is accompanied by loud rumblings and earthquake
a. aftershocks
b. intensity
c. magnitude
d. impacts
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Answer:
18. A.
19.A.
Explanation:
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Answer:
18. C
19. C
i know this i already reviewed this, but i forget the whole explanation but that's it trust me! i hope it could be help