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Matter in Our Surroundings — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceMatter in Our Surroundings1 Mark
MCQ
Choose the incorrect statement:
  • A
    We should wear cotton clothes in summer.
  • B
    Plasma is superenergetic and superexcited particle.
  • C
    $\text{B.E.C.}\ ($Bose$-$Einstein Condensate$)$ are formed by cooling gas of very low density at super low temperature.
  • ✓
    Terylene can absorb sweat more than cotton.
✓

Answer

Correct option: D.
Terylene can absorb sweat more than cotton.
Lightweight cotton is one of the most breathable fabrics and offers some airflow for drying out the dampness. Because cotton is a natural fiber, it absorbs moisture rather than repelling it $($forcing the sweat to sit on your skin$)$. Since it absorbs moisture so easily, pit stains are often a problem.
Fibres coming out from fabric Natural fibres are blended with synthetic fibres to obtain more superior and useful.
Fibres: These are called mixed fibres. Some well$-$known mixed fibres are tricot $($terylene $+$ cotton$)$, berry silk $($terylene $+$ silk$)$ and try wool $($terylene $+$ wool$)$. Terry silk cloth Terrycot cloth.

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