Question

1. who is research the science ?
2. who research the chemical ?
3. who is the biggest country in planet ?

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Answer 1

Explanation:

3.The largest country in the world is Russia with a total area of 17,098,242 Km² (6,601,665 mi²) and a land area of 16,376,870 Km² (6,323,142 mi²), equivalent to 11% of the total world's landmass of 148,940,000 Km² (57,510,000 square miles). See also: Most Populous Countries.