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Read the passage and answer:
Ravi's grandmother still uses a charkha. She says Gandhi used it as a sign of swadeshi — making cloth at home instead of buying only mill cloth from far away. Ravi compared wool and nylon sweaters. Wool traps air and keeps the body warmer on winter mornings. Nylon feels lighter but lets heat escape faster. In science class they learned pasteurisation: milk is heated and then cooled quickly so many germs die, yet the milk does not become a dry powder.
Wool keeps the body warmer mainly because it:
Read the passage and answer:
Ravi's grandmother still uses a charkha. She says Gandhi used it as a sign of swadeshi — making cloth at home instead of buying only mill cloth from far away. Ravi compared wool and nylon sweaters. Wool traps air and keeps the body warmer on winter mornings. Nylon feels lighter but lets heat escape faster. In science class they learned pasteurisation: milk is heated and then cooled quickly so many germs die, yet the milk does not become a dry powder.
Wool keeps the body warmer mainly because it:
Options
Correct Answer
A. Traps air
- Exam
- JNVST Class VI
- Language
- English
- Subject
- Environmental Studies
- Year
- 2027
- Difficulty
- 1/5
- Section
- Environmental Studies
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