Question

•A water clock and a sand clock are two examples of ______clocks
1)modern
2)ancient

•A sundial works only in the_____.
1)day
2)night

•Average speed in measured in_____.
1)minutes per hour
2)metre per second

•The speed of an object is defined as the distance travelled by it in____.
1)one hour
2)unit time​

Answer 1

Answer:

1)modern

2)night

2)unit time

Answer 2

Explanation:

1) Modern

2) Day

3) metre per hour

4) Unit time

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