Which element is found highest in earth crust?

Related Mcqs:

1. Fine-graned rocks formed on earth crust are called____________________?

   A. Intensive igneous rock B. Extrusive rock C. Sedimentary rock D. Plutonic...

2. Most abundant mineral in the earth crust is______________________?

   A. N-Feldspar B. Feldspar C. S-Feldspar D. Amplubole...

3. The most abundant metal in the earth’s crust and toxic to plants in low concentration is____________________?

   A. Mo B. Al C. Fe D. All the above...

4. Potassium (K) occurs as a constituent of the earth’s crust in the proportion of_________?

   A. 23 % B. 2.3 % C. 17 % D. 1.7 % Submitted by: Shafiq Rehman...

5. Oxygen and Silicon together comprise approximately ______ %of the earth crust?

   A. 64 % B. 79 % C. 75 % D. 73 % Submitted by: Shafiq Rehman...

6. The relative abundance of three types of rocks ( igneous-metamorphic- sedimentary) in the earth’s crust is_________?

   A. 12.5 % -12.5 % – 75% B. 64.7 % – 27.4 % – 7.9 % C. none of A & B D. 7.9% – 27.7 % – 64.4 Submitted by: Shafiq Rehman...

7. The seventieth element included in the list of essential nutrient element is:__________?

   A. Vanadium B. Cobalt C. Sodium D. Nickle Submitted by: Shafiq Rehman...

8. Which element can be fixed by smecitite___________________?

   A. Mgº B. Kº C. NH2 D. Both b & c...

9. The nutrient element silicon (Si) is:_________?

   A. Beneficial B. Harmful C. Both a and b D. None of the above Submitted by: Shafiq Rehman...

10. Essentiality criteria of an element :

    A. In the absence of an element, its not possible for plant to complete its vegetative cycle. B. The role played by an element is specific & can not be replaced by another element. C. The element is directly involved in the nutrition of the plant. D. All of these Submitted by: Shafiq Rehman...