Science M.C.Q-[Bio-1M]

2. They would consume less minerals

Explanation:

Tallness and profuse branching are desirable characters for fodder crops as they would provide more food for cattle. Dwarfness is desired in cereals such as wheat and rice so that less minerals are consumed by the plant.

1. Norman Borlaug

1. Apis Mellifera.

Explanation:

Apis mellifera ligustica is the Italian bee which is a subspecies of the western honey bee.

3. Iron

Explanation:

All the fertilizers either contain on of the nutrients from Nitrogen, Phosphorus or Potassium or all the nutrients depending upon the requirement of the crop plants. Iron is not provided by the fertilizers.

3. Iron.

Explanation:

All the fertilizers either contain on of the nutrients from Nitrogen, Phosphorus or Potassium or all the nutrients depending upon the requirement of the crop plants. Iron is not provided by the fertilizers.

2. Catla

Explanation:

Catla is the fastest growing carp and is south asian freshwater fish.

3. Sahiwal.

Explanation:

Sahiwal is an indigenous breed of cow. It is disease resistant.

4. Catlas.

Explanation:

Fish that are known as surface feeders all have a back that is perfectly straight, this allows for their upturned mouths to easily get right on the surface and scoop up the food, in their natural habitat they would do this to eat insects on the water surface.

4. Catlas

Explanation:

Catlas fishes are surface feeders, rohus are in the middle zone and mrigals and common carp are bottom feeders.

4. Gram

Explanation:

Gram is a major source of protein.

2. Sunflower

Explanation:

Sunflower is a crop plant that is grown commercially to produce oil. Sunflower oil is primarily used in cooking.

2. Iron

Explanation:

Iron is involved in the production of chlorophyll Iron also is a component of many enzymes associated with energy transfer, nitrogen reduction. and fixation, and lignin formation.

1. Holstein-Friesian.

Explanation:

It is the Highest milk yielding variety. It is an exotic breed and originate from Dutch province of North Holland and Friesland.

1. Canals.

Explanation:

Canals are most important source of irrigation from the period of 1960s, but in the 1970s, they yielded first place to wells and tube wells and now constitute the second most important source of irrigation in India. Canals are most effective techniques of irrigation in areas of low level relief, deep fertile soils, perennial source of water and extensive command area.

2. Punjab

Explanation:

Punjab leads the country's States and UT s in terms of land under irrigation, with 98.8 per cent of its crop land under irrigation. Other major states where irrigation is done by canals are Madhya Pradesh, Andhra Pradesh, Haryana, Punjab and Bihar.

3. It is readily absorbed by the plant.

Explanation:

Fertilizers are water soluble and that is the reason their nutrients are readily absorbed by the plants.

3. HH-260

Explanation:

HH-260 has the maximum capacity to lay eggs. It lays 260 eggs annually.

1. Holstein

Explanation:

4. All of the above

2. Fertilizer

3. Frost

4. All of these

Explanation:

Irrigation is the method by which water is collected, stored and supplied controllably when required by artificial means.

All the given options like increase in salinization, groundwater depletion, etc., are not the outcome of irrigation projects. But sometimes reservoirs may result in floods due to loss of capacity in the reservoirs caused by sedimentation.

3. Sheep

Explanation:

Sheep is not a draught animal and is raised for meat and wool.

3. Suited to grow only in a particular type of climate

Explanation:

Plants that have been genetically modified must have the following features:

produce higher yield.

Short time period between sowing and harvesting.

suited to grow in a variety of climates and places.

4. Individual marketing and consumption of crop is not possible.

Explanation:

Mixed cropping is a type of cultivation in which two types of crops are grown at a time and in the same piece of land. It is a form of polyculture. The characteristic of mixed cropping is balancing the nutrient level on soil, suppression of weed and insect pests, minimize the risk of crop failure etc.

2. Flood

Explanation:

Crops production can go down due to biotic (diseases, insects and nematodes) and abiotic (drought, salinity, waterlogging, floods, heat, cold and frost) stresses under different situations.

4. Boron

Explanation:

Boron being a micronutrient is required in small quantities by the plant for its growth.

3. Berseem and lucerne.

Explanation:

The common availability of green fodder in winters leads to high yield of milk. It comes from berseem and lucerne.

4. It allows leaching.

Explanation:

Leaching is not possible in case of manure as it is a bulky substance and nutrients take time to get absorbed to soil.

4. Methyl bromide.

Explanation:

Methyl bromide is a fumigant used against a wide variety of pests including spiders, mites, fungi, plants, insects, nematodes, and rodents. Farmers use methyl bromide primarily to treat soil to kill nematodes, fungi, and weeds.

4. All of the above

Explanation:

Broad leaf weeds can be tough, aggressive plants and should be removed using weedicides or manual pulling.

3. Silver revolution

2. Magnesium

4. Aspergillosis

1. Sudan grass

3. Growing food crops and fodder crops in the same field.

Explanation:

Growing food crops and fodder crops together in a field is a food-fodder mixed farming system. In this agricultural system, a farmer grows crops like rice, wheat or cash crops together with fodder crops like sorghum, oat, etc. to increase the income through different sources.

4. All of these

Explanation:

Natural insecticides are less expensive than buying and applying pesticides, and it's safer for your garden, your family, the natural wildlife and the environment. Natural insecticides, such as nicotine, pyrethrum and neem extracts, made by plants as defenses against insects.

4. All of these.

Explanation:

All the above mentioned vegetable like broccoli, Cauliflower and Cabbage have been artificially selected and bred for maximum yield.

3. Higher yields of crop in a shorter period of time

Explanation:

Varieties or strains of improved crops can be selected by quality breeding for various useful characteristics such as disease resistance, response to fertilisers, product quality and high yields.

4. Dog and cat
   Explanation:
   Since, humans first domesticated cats and dogs, these furry friends have taken on increasingly important roles in people's lives. As wild animals, dogs and cats first entered human life in the role of hunting animals and guardians, then as companions and finally as family members.

4. Cereal

Explanation:

The important and most abundant source of food and fodder for man and animals is cereal. It provides major source of nutrients like carbohydrates and protein.

1. Leguminous crops

1. Check-dams

1. Mixed farming.

Explanation:

The method of mixed farming enables a farmer to incur profits. It is a common practice in farming. It provides economic safety to farmers.

3. Rabi crops

Explanation:

There are some crops grown during the rainy or the kharif season from the month of June to October, and some of the crops are grown in the winter season, called the rabi season from November to April. Paddy, soyabean, pigeon pea, maize, cotton, green gram and black gram are kharif crops, whereas wheat, gram, peas, mustard, linseed are rabi crops.

4. Optimum use of land for agriculture

Explanation:

Optimum use of land for agriculture is the best way to improve the quanity of food production.

Cultivating the soil according to the crop pattern, proper utilization of land to get the best yield, practicing crop rotation, and getting maximum yield by making full use of agricultural land.

4. Both A and B

Explanation:

Crop rotation is the process of planting different crops one after another in the same field. Crop rotation increases the fertility of soil and increases the production of crop. High yielding of variety of crops also increases the production of crops.

1. Gundhi Bug - Insect pest of paddy.

3. 40-60/ minute

Explanation:

Buffalo pulse rate is 40-60 per minute and it is one of the signs of good health.