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Samuel was kept in hospital for a weekMarks:1
but he's up and about again.
If someone is up and about, they are out of bed or have recovered after an illness or an injury.
He who digs a pit for othersMarks:1
falls into it himself.
The proverb means - If you do harm to others you will get harmed yourself.
Honey catches moreMarks:1
flies than vinegar.
The proverb denotes that one can obtain more cooperation from others by being nice.
The gas used in a fire extinguisher isMarks:1
Explanation:Carbon dioxide is heavier than oxygen. So, it covers the fire like a blanket. Due to this the supply of oxygen to the fuel stops and the fire is controlled.
What happens when air comes in contact with a cooler surface?Marks:1
Water droplets are seen.
Explanation:When air comes in contact with a cooler surface, water droplets are seen on that surface. This happens because air contains water vapours which condense and change into water droplets.These droplets get deposited on that cooler surface.