write the following numbers with appropriate signs:
[a]100m below sea level.
[b]25 degree c above 0 degree c tempreature,
[c]15 degree c below 0 degree c temperature.
[d]any five numbers less than 0.

a.   100 m below sea level=-100 mb.   25°C above 0°C= +25°Cc.   15°C below 0°C=-15°Cd.    5 numbers less than 0=-1, -2, -3, -4 and -5
 

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