Which of the following statements is true about SMOG?
ASMOG is derived from the fog
BSMOG is derived from water vapour
CSMOG is derived from smoke
DSMOG is derived from both fog and smoke
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At which level does natural selection act?
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Which of the following statements are true ?
1.The Himalayan ranges are among the world's youngest fold mountains.
2.Due to this the himayalas are geologically very active and prone to landslides.
By what mechanism does the body compensate for low oxygen availability in altitude sickness?