MCQ
What was not used by Millar in his experiment ?
- ✓Condenser, electrodes, $CO_2$, and $O_2$.
- B$CH_4, H_2, H_2O, NH_3$, boiling water.
- CElectrodes, boiling water, $CH_4, NH_3.$
- DGases $(CH_4, NH_3, H_2O, H_2)$, boiling water,condenser.
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$R$ : These short extensions can form phosphodiester bonds with their complementary counterparts.
$R$ - The salt concentration is $45 -50$ (parts per thousand) in the sea.

| Column $- I$ | Column $- II$ (birds species) |
| $(a)$ Colombia | $(p)\; 1200$ |
| $(b)\; 41^o$ New York | $(q)\; 1400$ |
| $(c)$ India | $(r)\; 105$ |
| $(d)$ Greenland at $71^oN$ | $(s)\; 56$ |