MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 1489 Mcqs, each offering curated multiple-choice questions to sharpen your 8th Class knowledge and support exam preparation. Choose a topic below to get started.
| 851. |
Mass of an object is |
| A. | amount of matter present in the object |
| B. | same as weight of an object |
| C. | measure of gravitational pull |
| D. | none of these |
| Answer» B. same as weight of an object | |
| 852. |
When a body is thrown up, the force of gravity is |
| A. | in upward direction |
| B. | in downward direction |
| C. | zero |
| D. | in horizontal direction |
| Answer» C. zero | |
| 853. |
A particle is taken to a height R above the earths surface, where R is the radius of the earth. The acceleration due to gravity there is |
| A. | \[2.45\text{ }m/{{s}^{2}}\] |
| B. | \[4.9\text{ }m/{{s}^{2}}\] |
| C. | \[9.8\text{ }m/{{s}^{2}}\] |
| D. | \[19.6\text{ }m/{{s}^{2}}\] |
| Answer» B. \[4.9\text{ }m/{{s}^{2}}\] | |
| 854. |
The direction of force on an upward moving ball is from |
| A. | up to down |
| B. | down to up |
| C. | left to right |
| D. | right to left |
| Answer» B. down to up | |
| 855. |
A ball that is thrown up returns to the surface of Earth because of |
| A. | gravity |
| B. | friction |
| C. | electricity |
| D. | magnetism |
| Answer» B. friction | |
| 856. |
Two magnets are placed at a distance from each other on a frictionless surface, as shown in the given figure. The magnets will experience |
| A. | only magnetic force |
| B. | only frictional force |
| C. | magnetic and frictional forces |
| D. | magnetic and gravitational forces |
| Answer» E. | |
| 857. |
In order to push or pull an object |
| A. | force must be applied |
| B. | speed must be applied |
| C. | friction must be applied |
| D. | electricity must be applied |
| Answer» B. speed must be applied | |
| 858. |
Which of the following factors are utilided to increase food production and to meet the demand of an increasing population? |
| A. | Practicing efficient land management and development. |
| B. | Continuous research to ensure sustainable development. |
| C. | Using more pesticides to control pests. |
| D. | Both (A) and (B) |
| Answer» E. | |
| 859. |
Which of the following are examples of an integrated cultivation system? |
| A. | Breeding livestock on oil palm plantations |
| B. | Breeding small fishes in paddy fields |
| C. | Planting many types of crops on a small area |
| D. | Both (A) and (B) |
| Answer» E. | |
| 860. |
Which of these parts has nitrogen fixing bacteria in legumes? |
| A. | Leaves |
| B. | Flowers |
| C. | Root nodules |
| D. | Stems |
| Answer» D. Stems | |
| 861. |
Which of the following helps in improving the quantity of food production? |
| A. | Pesticides. |
| B. | Synthetic hormones. |
| C. | Education and guidance to consumers. |
| D. | Optimum use of land for agriculture. |
| Answer» E. | |
| 862. |
Which of the following is a 'rabi' crop? |
| A. | Groundnut |
| B. | Maize |
| C. | Wheat |
| D. | Sugarcane |
| Answer» D. Sugarcane | |
| 863. |
Which of these is the correct sequence of steps to develop a new plant variety? P - Evaluation Q - Multiplication of improved seeds R - Selection S - Distribution of improved seeds T - Development of gene variation |
| A. | T, R, P, Q, S |
| B. | R, T, P, Q, S |
| C. | S, Q, P, R, T |
| D. | P, Q, R, T, S |
| Answer» B. R, T, P, Q, S | |
| 864. |
Which of the following processes is also called field fallow? |
| A. | Ploughing |
| B. | Irrigating |
| C. | Sowing |
| D. | Leaving the field uncultivated |
| Answer» E. | |
| 865. |
Some farmers add a type of algae to barren field to support crop growth. Which algae did they use? |
| A. | Blue algae |
| B. | Green algae |
| C. | Blue green algae |
| D. | Brown algae |
| Answer» D. Brown algae | |
| 866. |
Which of these elements is/are required to synthesize proteins? |
| A. | Magnesium |
| B. | Nitrogen |
| C. | Potassium |
| D. | All of these |
| Answer» C. Potassium | |
| 867. |
Which of the following is made to prevent seed-borne diseases? |
| A. | Sowing at the right depth |
| B. | Spacing at right intervals |
| C. | Sowing in highly wet soil |
| D. | Treat with fungicide solutions |
| Answer» E. | |
| 868. |
Which of these agricultural implements is used to sow seeds? |
| A. | Wooden plank |
| B. | Seed driller |
| C. | Leveller |
| D. | Plough |
| Answer» C. Leveller | |
| 869. |
Which of the following weeds grows along with every crop? |
| A. | Chenopodium |
| B. | Amaranthus |
| C. | Convolvulus |
| D. | Wildcat |
| Answer» C. Convolvulus | |
| 870. |
Which of the following are removed by a harrow? |
| A. | Weeds |
| B. | Crop plants |
| C. | Stones |
| D. | Rocks |
| Answer» B. Crop plants | |
| 871. |
Which of the following agricultural tools is used to level the field? |
| A. | Harrow |
| B. | Leveller |
| C. | Seed drill |
| D. | Plough |
| Answer» C. Seed drill | |
| 872. |
Match the following correctly. Column-I Column-II a. Kharif crops (i) Wheat b. Rabi crops (ii) Ploughing c. Tilling (iii) Harvesting d. Combine (iv) Paddy |
| A. | a-i, b-ii, c-iii, d-iv |
| B. | a-iv, b-i, c-ii, d-iii |
| C. | a-iv, b-iii, c-ii, d-i |
| D. | a-iii, b-iv, c-i, d-ii |
| Answer» C. a-iv, b-iii, c-ii, d-i | |
| 873. |
Which of the following is used as roughage in animals husbandry? |
| A. | Napier grass |
| B. | Cotton seeds |
| C. | Oil cakes |
| D. | Rice polish |
| Answer» B. Cotton seeds | |
| 874. |
Which of the following has been used for increasing productivity of super milk cows? |
| A. | Artificial insemination by only a pedigree bull. |
| B. | Super ovulation of only a high production cow only. |
| C. | Only embryo transplantation. |
| D. | A combination of all the above involving a carrier cow. |
| Answer» E. | |
| 875. |
Which of the following programmes is also called operation flood? |
| A. | Green revolution |
| B. | White revolution |
| C. | Black revolution |
| D. | Yellow revolution |
| Answer» C. Black revolution | |
| 876. |
Which of the following are the uses of animal husbandry? |
| A. | Increase in milk production |
| B. | Proper utilization of animal wastes |
| C. | Protection of animals against diseases |
| D. | All of the above |
| Answer» E. | |
| 877. |
Which of the following disadvantages/are caused due to the farming of high yielding varieties of crops? |
| A. | They give less fodder. |
| B. | They require frequent weeding. |
| C. | They require higher inputs. |
| D. | All of the above. |
| Answer» E. | |
| 878. |
Which of the following crops get attacked by Gundhi bug? |
| A. | Wheat |
| B. | Sorghum |
| C. | Paddy |
| D. | Cotton |
| Answer» D. Cotton | |
| 879. |
Which of the following are the uses of machinery in agriculture? |
| A. | Increase the quantity of crop yield. |
| B. | Get the job done faster. |
| C. | Reduce the dependency on human and animal labour. |
| D. | Both (B) and (C) |
| Answer» E. | |
| 880. |
Which of the following is NOT true for chemical fertilizers? |
| A. | They are nutrient specific. |
| B. | They are readily soluble in water. |
| C. | They provide humus to the soil. |
| D. | The overuse of chemical fertilizers pollutes the soil. |
| Answer» D. The overuse of chemical fertilizers pollutes the soil. | |
| 881. |
Which of the following methods enable us to select better and healthy seedling for cultivation of rice? |
| A. | Transplantation |
| B. | Broadcasting |
| C. | Chemical fertilizers |
| D. | All of the above |
| Answer» B. Broadcasting | |
| 882. |
Which of the following statements is NO' true? |
| A. | The rotation of crops improves the fertility of soil. |
| B. | The rotation of crops saves a lot c nitrogenous fertilizers. |
| C. | The rotation of crops helps in weed and pest control. |
| D. | The rotation of crops helps in the maintenance of nutrients in the soil |
| Answer» D. The rotation of crops helps in the maintenance of nutrients in the soil | |
| 883. |
Which of the following crops would enrich the soil with nitrogen? |
| A. | Apple |
| B. | Pea |
| C. | Paddy |
| D. | Potato |
| Answer» C. Paddy | |
| 884. |
In which of the following agricultural methods does the farmer sows beans in his fields after harvesting a crop of wheat? |
| A. | Crop rotation |
| B. | Multiple cropping |
| C. | Fallow field |
| D. | Mixed cropping |
| Answer» B. Multiple cropping | |
| 885. |
In which of the following processes involves the removal of chaff from grain? |
| A. | Weeding |
| B. | Threshing |
| C. | Harvesting |
| D. | Winnowing |
| Answer» E. | |
| 886. |
Which of the following agricultural practices keeps the fields free for a season to replenish the lost nutrients? |
| A. | Monocropping |
| B. | Crop rotation |
| C. | Multiple cropping |
| D. | Field fallow |
| Answer» E. | |
| 887. |
Which of the following practices does NOT improve the fertility of soil? |
| A. | Keeping the land fallow |
| B. | Practising crop rotation |
| C. | Practising monocropping |
| D. | Practising multiple cropping |
| Answer» D. Practising multiple cropping | |
| 888. |
Which of the following describes the advantage of ploughing? |
| A. | It allows the penetration of roots of plants. |
| B. | It helps in proper aeration and eradicates weeds. |
| C. | It promotes the growth of useful soil bacteria. |
| D. | All of the above. |
| Answer» E. | |
| 889. |
Which of the following words would complete the given sequence? |
| A. | Broadcasting |
| B. | Transplanting |
| C. | Manuring |
| D. | Drilling |
| Answer» D. Drilling | |
| 890. |
Which of the following shows the correct order of the given agricultural practices used during cultivation? |
| A. | Ploughing, sowing, levelling, harvesting, manuring and irrigation |
| B. | Ploughing, levelling, irrigation, sowing, manuring and harvesting |
| C. | Ploughing, irrigation, sowing, manuring, harvesting and levelling |
| D. | Ploughing, levelling, manuring, sowing, irrigation and harvesting |
| Answer» E. | |
| 891. |
Which of the following crops requires more irrigation? |
| A. | Pulses |
| B. | Rice |
| C. | Maize |
| D. | Jowar |
| Answer» C. Maize | |
| 892. |
Which of the following advantages do we get by using sprinkler system of irrigation? |
| A. | Helps the fields fill up with water |
| B. | Controls water supply |
| C. | Increases the evaporation of water |
| D. | Decrease the fertility of soil |
| Answer» C. Increases the evaporation of water | |
| 893. |
Which of the following terms is best suitable for stocking grains for emergencies? |
| A. | Surplus stock |
| B. | Storage |
| C. | Buffer stock |
| D. | Regular stock |
| Answer» D. Regular stock | |
| 894. |
Which of the following information is/are true about nitrogen cycle? |
| A. | Maintains the concentration of nitrogen in the air. |
| B. | Ensures a continuous source of protein. |
| C. | Increases water pollution. |
| D. | Both (A) and (B) |
| Answer» D. Both (A) and (B) | |
| 895. |
Which of the following classes of microorganisms play(s) an important role in the nitrogen cycle? |
| A. | Bacteria |
| B. | Algae |
| C. | Fungi |
| D. | Both (A) and (B) |
| Answer» E. | |
| 896. |
Which of the following is NOT a rabi crop? |
| A. | Rice |
| B. | Wheat |
| C. | Mustard |
| D. | Potato |
| Answer» B. Wheat | |
| 897. |
Which methods of cultivation will result in the loss of soil fertility? |
| A. | Crop rotation |
| B. | Shifting cultivation |
| C. | Excessive use of chemical fertilizers |
| D. | Both (B) and (C) |
| Answer» E. | |
| 898. |
Which of the following are considered as modern technology in agriculture? |
| A. | Genetic engineering is used to produce high quality traits in livestock and poultry |
| B. | Application of synthetic chemicals to improve soil fertility |
| C. | Using agromachinery for planting, harvesting and collecting agriculture produce |
| D. | All the above |
| Answer» E. | |
| 899. |
Identify the given microorganism? |
| A. | Chlamydomonas |
| B. | Filamentous algae |
| C. | Paramecium |
| D. | Giardia |
| E. | None of these |
| Answer» C. Paramecium | |
| 900. |
Winnowing is done with the help of: |
| A. | Water |
| B. | Wind |
| C. | Soil |
| D. | All the above |
| E. | None of these |
| Answer» C. Soil | |