Everyday Science

Q494

The salinity of seawater is determined by the amount of common salt (Sodium Chloride) in ——– of seawater.

Q496

On November 08, —— became the first Chinese woman to walk in space:

Q498

Chlorofluorocarbons (CFC) are used in which of the following products:

Q500

During winter in cold countries, the ______ is mixed to melt ice on roads:

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