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Question
Riya observed two scenes around her. Choose the correct classification of changes for the observations.
1. Few children were inflating balloons
2. Farmers were harvesting crops in their fields
Riya observed two scenes around her. Choose the correct classification of changes for the observations.
1. Few children were inflating balloons
2. Farmers were harvesting crops in their fields
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Solution
The correct option is D Observation 1: Reversible
Observation 2: Irreversible
Reversible changes refer to only those changes that can be undone. Inflating balloons is a reversible change as once the air escapes out, the balloon comes back to its original shape and size. Hence, the change caused by inflating a balloon can be undone.
However, harvesting crops is an irreversible change as once the crops are harvested they cannot be planted back to grow.
Observation 2: Irreversible
Reversible changes refer to only those changes that can be undone. Inflating balloons is a reversible change as once the air escapes out, the balloon comes back to its original shape and size. Hence, the change caused by inflating a balloon can be undone.
However, harvesting crops is an irreversible change as once the crops are harvested they cannot be planted back to grow.
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