Question

1. Which of the following is a trace element ?
(A) Phosphorous
(B) Carbon
(C) Magnesium
(D) Sodium
2. 90% of the total photosynthesis is carried out by
(A) Algae
(B) Mesophytes
(C) Pteridophytes
(D) Xerophytes
3. The % of light energy fixed in photosynthesis is generally around
(A) 0.10%
(B) 1%
(C) 10%
(D) 100%
4. The hydrogen donor in bacterial photosynthesis is usually
(A) Water
()​

Answer 1

Answer:

1. ( C ) Magnesium

2. ( B ) Mesophytes

3. (B) 1%

Explanation:

Please write full mcqs of 4

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