Micronutrients

Q.

The edaphic factors are related to

1. Humidity

2. Soil texture

3. Rainfall

4. Wind velocity

Q. In plant mineral nutrition, elements are called macro or micro-elements depending upon their

1. relative presence in plant ash
2. relative importance in plant growth
3. relative amount required in plants
4. relative availability in soil

Q.

Is meat a good source of micronutrients?

Q. Which of the following nutrient elements can not undergo remobilisation in plants?

1. Nitrogen
2. Potassium
3. Calcium
4. Magnesium

Q. Choose the micronutrients required for plant growth and development.

1. Fe
2. Mn
3. Cu
4. Mo
5. Mg
6. Zn
7. B
8. Cl
9. Ni
10. Co

Q. Assertion (A): Non-mineral elements in ash analysis study are oxidised.
Reason (R): Ash contains inorganic elements which are not destroyed by heating.

1. Both A & R true and R explains A
2. Both A & R true and R does not explain A
3. A is true and R is false
4. Both A & R are false

Q.

Which one of the following is not a micronutrient?

1. Magnesium

2. Molybdenum

3. Boron

4. Zinc

Q. Which group of elements is not essential for a normal plant?

1. Potassium, calcium, magnesium
2. Iron, zinc, manganese, boron
3. Lead, nickel, iodine, sodium
4. Magnesium, iron, molybdenum

Q. Except for C, H, and O, all other essential elements are obtained from the soil as mineral nutrients.

1. True
2. False

Q. Which among the following are trace elements?

1. Nitrogen, phosphorus, molybdenum and copper
2. Manganese, iron, molybdenum and copper
3. Cobalt, selenium, sodium and silicon
4. Nitrogen, carbon, oxygen and phosphorus