Question
Which of the following scientist proved that air and
water were the primary sources of C, H, and O in plant tissue?ÂSolution
French agriculturist J.B. Boussingault (1834) proved that air and water were the primary sources of C, H, and O in plant tissue. He was a French chemist and agronomist who made significant contributions to agricultural science, including the understanding of plant nutrition and the role of elements such as nitrogen in plant growth. His experiments in the mid-19th century helped to debunk the then-prevailing theory that plants obtained carbon from the soil, showing instead that they primarily derive it from carbon dioxide in the atmosphere.
Select the number from among the given options that can replace the question mark (?) in the following series.
18, 14, 24, ?, 122, 330
"Botany" is related to "Study of Plants" in the same way as "Ornithology" is related to "____".
Four number-pairs are given, out of which three are alike in a certain manner and one is different. Choose the different number-pair.
Odd one out
Select the number from among the given options that can replace the question mark (?) in the following series.
317, 324, 333, 354, 477,?
In the question, assuming the given statements to be true, find which of the conclusion (s) among given conclusions is /are definitely true and then giv...
Who sits second to the right of Q?
Six persons Q, R, S, T, U, and V are sitting in a row such that all are facing towards the north direction. V sits third to the right of U. One person s...
In the following question, select the odd image from the given alternatives.
In a certain code, BEDLAM is coded as 25412113. How is CONMAN written in that code?
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