Improvement in Food Resources
The enrichment of water bodies with nutrients leading to excessive growth of phytoplankton is known as
(1) Nitrification
(2) Ammonification
(3) Eutrophication
(4) Phyto - enrichment
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Improvement in Food Resources
Identify the macronutrient
(1) copper
(2) zinc
(3) sulphur
(4) Boron
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Improvement in Food Resources
Basing on classification, which of the following is different from the other three?
(1) Pumpkin
(2) Maize
(3) Pea
(4) Groundnut
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Improvement in Food Resources
Some species of fishes can be cultured in a single fish pond. These fishes do not compete for food as they have different food habits. In the following columns fishes are matched according to their food habits. Select the incorrect match
(1) Labeo rohita - Column feeder
(2) Catla catla - Surface feeder
(3) Cirrhinus mrigala - Bottom feeder
(4) Common carp - Surface feeder
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
Improvement in Food Resources
Which is the improved hybrid variety of Wheat ?
(1) Sona
(2) Sonalika
(3) PS-16
(4) Paras
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Improvement in Food Resources
Select the correct answer about manure
(1) Manure contains large quantities of organic matter and small quantities of nutrients.
(2) It increases the water holding capacity of sandy soil.
(3) It helps in draining out of excess of wat er f rom clayey soil.
(4) Its excessive use pollutes environment because it is made of animal excretory waste.
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 2 Solution : -. |
Improvement in Food Resources
Weeds affect the crop plants by
(1) Killing of plants in field before they grow
(2) Dominating the plants to grow
(3) Competing for various resources of crops (plants)
(4) All the above
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 3 Solution : -. |
Improvement in Food Resources
Prior to sowing of crop seeds, these plants are grown and then mulched by ploughing them into the soil. Which of the following statements is not correct about them?
(1) These plants turn into a kind of manure called vermicompost
(2) These include sunnhemp, guar, Berseem etc
(3) These plants help in enriching the soil in nitrogen and potassium
(4) Both (1) & (3)
| A. | Option 1 |
| B. | Option 2 |
| C. | Option 3 |
| D. | Option 4 |
|
Option: 4 Solution : -. |
