MEDIUM
7th CBSE
IMPORTANT
Earn 100

Differentiate between convex lens and concave lens.

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HARD
7th CBSE
IMPORTANT
Increased growth of algae occurs due to the presence of
MEDIUM
7th CBSE
IMPORTANT
Food is transported to all parts of the plant through the
EASY
7th CBSE
IMPORTANT

Garima took an insulated copper wire. She removed the insulation at the ends of the wire with the help of a knife. She then connected the two ends of a cell with the two ends of the copper wire, as shown in the figure. After a few minutes, she disconnected the two wires and touched them at their ends. What would be her observation? 

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EASY
7th CBSE
IMPORTANT
The rear view and side view mirrors in cars are
EASY
7th CBSE
IMPORTANT
Thunderstorms are accompanied by
EASY
7th CBSE
IMPORTANT
The percentage of water present in the human body is