All of the following are elements that plants need in very small amounts except___________?

Related Mcqs:

1. Out of 92 naturally occurring chemical elements how many are considered as bio-elements?

   A. 6
   B. 16
   C. 26
   D. 15

2. Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering______________?

   A. Gibberellins
   B. Cytokinins
   C. Auxins
   D. Ethene.

3. Epiphytes are plants which depend on other plants for________?

   A. food
   B. mechanical support
   C. shade
   D. None of these

   Submitted by: Tauqeer Ahmad Rajput

4. The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called:

   A. An organ
   B. A molecule
   C. Tissue
   D. Both a and c

5. Which are the four most abundant elements in living cells ?

   A. carbon, oxygen, nitrogen, sulfur
   B. carbon, oxygen, hydrogen, nitrogen
   C. carbon, oxygen, sulfur, phosphorus
   D. carbon, sulfur, hydrogen, magnesium

6. The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called__________?

   A. An organ
   B. A molecule
   C. Tissue
   D. Both a and c

7. Out of 92 naturally occurring chemical elements how many are considered as bio-elements__________?

   A. 6
   B. 16
   C. 26
   D. 15

8. The number of naturally accusing chemical elements involved in bio chemical reaction is

   A. 126
   B. 86
   C. 92
   D. 206

   Submitted by: Fareed Ahmed

9. How many of the bio elements constituent 99% of the total human body?

   A. 8
   B. 4
   C. 6
   D. None of These

   Submitted by: Fareed Ahmed

10. Which of the following light is least absorbed by the plants?

    A. Orange
    B. Red
    C. Blue
    D. Green