Explore topic-wise InterviewSolutions in Current Affairs.

1. When TR is increasing at constant rate, MR should be constant.
2. When TR is increasing at diminishing rate, MR should be diminishing.
3. When TR is maximum, MR is zero.
4. When TR is diminishing, MR is negative.

This is the way to present accounts related to national income in dual entry system.

The difference between both arise due to 

1) Net factor income from abroad. and

2) Net indirect taxes. In GDP_MP Net factor income from abroad is not included but it includes net indirect taxes. GNP_FC = GDP_Mp + net factor income from abroad – net indirect taxes

“Leakage” is that economic concept, which has negative impact on flow of income.

(a) A decrease in marginal revenue – When MR is declining, less is added to TR for every additional unit sold. Accordingly, TR increases only at a diminishing rate. TR stops increasing when MR = 0 so that TR is maximum when MR = 0.

(b) An increase in marginal revenue – In case AR is constant (as under perfect competition), MR is also constant, implying that TR increases at a constant rate. Accordingly, TR forms a straight line sloping upward and starting from the origin.

(i) Flow 

(ii) Stock

It refers to the flow of money between different sectors of the economy such as firm, household etc. Eg. Flow of factor income from firm to house hold and consumption expenditure from house hold to firm. 

‘Injection’ is that economic concept, which add to flow of income and goods e.g., investment, Exports. 

It refers to the flow of goods and services between different sectors of the economy. Eg. Flow of factor services from household to firm and flow of goods and services from firm to household. 

Following points show the relation between total revenue and marginal revenue :

1. When TR is increasing at constant rate, MR should be constant.
2. When TR is increasing at diminishing rate, MR should be constant.
3. When TR is maximum, MR is zero.
4. When TR is diminishing, MR is negative.

(c) Additional proceeds from the sale of an additional unit

(c) Apiculture

Correct answer is (c) Cocoon

Correct answer is (c) Three

Plant fibres are very important for us. Different parts of plants make thick-walled structures which are utilized to make clothes, ropes, bags, etc. These thick-walled structures are called fibres. Some fibre yielding plants are jute, cotton, coconut. Jute is used for making ropes, gunnv sacks, carpets, etc. Coir from coconut is used for making ropes, carpet, mattresses, etc. Cotton that comes from the seedpod of the cotton plant used for making clothes, dressing of wound, etc.

Timber plays important role in fulfilling the need for house which is one of the three fundamental needs of humAnswer:The tertiarv xvlem formed in perennial plants which belong to gymnosperms and angiosperms. This tertiary xylem is called wood. Wood is utilized for making furniture, windows, doors, etc. Wood used for making these items is also called timber. Some timber producing trees are teak, shal, sheesham, deodar, etc.

Timber plays important role in fulfilling the need for house which is one of the three fundamental needs of hum. The tertiary xylem formed in perennial plants which belong to gymnosperms and angiosperms. This tertiary xylem is called wood. Wood is utilized for making furniture, windows, doors, etc. Wood used for making these items is also called timber.

Wood which is used for making furniture, doors, windows, etc. is called timber. Teak is an example of timber plant.

(a) Ultra violet

If the commodity is a free good, the price = 0 

Q = 30 – 2 × 0 

= 30 – 0 = 30

Wood used for making furniture, door, window, etc. is called timber.

Vegetable oils are complex compounds of carbon which are made up of hydrocarbon, ester, alcohol, aldehyde, etc. Oils are of three types, viz. edible oils, inedible oils and aromatic oils.

1. Edible Oils: Groundnut oil, sesame oil, coconut oil, soyabean oil, rapeseed oil, sunflower oil, mustard oil, etc. are used as edible oil. Oil is mainly used for frying the food items.

2. Inedible Oils: Castor oil, turpentine oil, etc. are examples of inedible oil. These are used in paints and varnishes and for medicinal purposes.

3. Aromatic Oils: Camphor, sandalwood, clove, khus, etc. are used for extracting aromatic oils. Aromatic oils are used for making perfumes and cosmetics.

Column 2 – Column 3 

Elastic – luxury product 

Elastic – close substitutes are available 

Elastic – no substitute 

Elastic – Essential good 

Elastic – Essential good

Following types of honeybee are found in a beehive:

1. Queen Bee: There is a single queen bee in a beehive. Queen bee is largest in size. Her main responsibility is to lay eggs to populate the beehive.

2. Drones: These are males who are responsible for copulating with the queen bee. They are very few in number.

3. Worker: These are sterile females. Their job is to bring pollen from flowers, to feed the larvae and to make beehive and honey.

Man has been rearing animals to obtain milk since ancient time. Milk production is the main component of dairy industry. Buffaloes are highly important for milk production because most of the milk production in India comes from buffaloes. Some important breeds of buffalo are Zafrabadi, Murrah, Sukhi, Bhadawari, Mehsana, etc. Some important breeds of cow are Gir, Sahiwal, Sindh, Devaki, FFaryana etc. Some states also rear goats for milk production. Some important breeds of goats are Sirohi, Barbari, Kashmiri Pashmina, Jamnapari, etc.

About 55% of world’s buffaloes and 15% of world’s cows are available in India. Buffaloes contribute 53% and cows contribute 43% to total milk production in India. India is the largest milk producer in the world.

Various stages of life cycle of silk moth are as follows:

• Adult: The adult appears like a moth and is pale brown in colour.
• Eggs: Silk moth lays eggs on mulberry leaves. Eggs are carefully collected on paper strips and sold to silk farmers.
• Larva: Eggs hatch to produce larva. Larva is also called the silk worm. Larva is a glutton in terms of eating and feeds on mulberry leaves. Larva quickly grows to five times its original size. There is a pair of silk glands (spinnerets) in a larva. The larva releases a liquid protein which hardens to become fibre on contact with air.
• Cocoon or Pupa: Once the silkworm grows to 7.5 cm length, it stops feeding and begins to spin a cocoon around it. The cocoon is made from fine threads of silk. The inactive larva inside the cocoon is called pupa. Each cocoon can give 1000 – 1200 m long yarn of silk.

Change in price leading to changes in quantity demanded causes changes in total expenditure incurred on commodity. By looking at the variation in total expenditure, price elasticity can be calculated. Since total expenditure remaining the same when price changes, elasticity is equal to one (unitary elastic demand).

Plants are important source of chemicals which are used for making medicines. These chemicals are obtained from different parts of plants, e.g. root, stem, leaf, flower, fruit, seeds, etc. 

Some important medicinal plants are as follows:

Living beings need energy to carry out various biological functions. This energy comes from food. 

Some important plants which provide food are as follows:

Cereals: Cereals are the most important food. Cereals come from plants of grass family (Graminae or Poaceae) and are the main source of starch. Starch is the main respiratory substrate in human body. Some cereals are as follows: wheat, rice, maize, millet, barley, etc.

Pulses: Pulses are the main source of protein for vegetarians Pulses belong the the Leguminoceae family of plants. Some examples of pulses are as follows: gram, red gram, pea, groundnut, etc.

Oil Yielding Plants: Vegetable oils are complex compounds of carbon which are made up of hydrocarbon, ester, alcohol, aldehyde, etc. Oils are of three types, viz. edible oils, inedible oils and aromatic oils from which edible oil is used in food. Examples are mustard oil, sunflower oil, etc.

Important Spices: Indian food is incomplete without spices. Different types of spices are used in Indian food, e.g. black pepper, cumin, red chilli, fenugreek, clove, cardamom, cinnamon, turmeric, garlic, ginger, star aniseed, etc.
Beverages: Tea and corfee are the most often used beverages around the world.

Vegetables: Vegetables are important part of a balanced diet. Vegetables are important sources of vitamins, minerals, fibre and water. Vegetables are obtained from different parts of plants, e.g. root, stem, leaves, flower and fruit.

Fruits: Fruit is a mature ovary which is formed after fertilization in flowering plants. Fruits are generally eaten raw. Jams, jellies, squash, etc. are made from fruits.

Animal husbandry is done to obtain milk, dairy products and leather. Some animals are also used for tilling the land and for pulling the carts. Animal husbandry provides an additional source of income to farmers. Thus, it helps in upliftment of poor in rural areas.

Mustard, groundnut.

Cocoon is left in boiling hot water for some time. This helps in separating the yarn of silk from cocoon. After that, silk is wound around a spindle. This process is called reeling. This step is followed by spinning the silk fibre into silk thread.

Ranikhet, Avian influenza.

Four plants which give spice are as follows:

(a) Clove

(b) Cardamom

(c) Cinnamon

(d) Fenugreek

Poultry farming.

Vegetable from root: Carrot and radish, vegetable from stem: Potato and colocasia.

Following are the scientific names of some cereal plants:

(a) Wheat: Triticum aestivum

(b) Rice: Oryza sativa

(c) Maize: Zea mays

(d) Pearl millet: Pennisetum typhoides

Correct answer is (d) Opium

Ocimum sanctum (Tulsi) Centella asiatica (Brahmi).

Maize cereal is often used as poultry feed.

Option : b. gel

Document Vector Table is used while implementing Bag of Words algorithm. In a document vector table, the header row contains the vocabulary of the corpus and other rows correspond to different documents.

If the document contains a particular word it is represented by 1 and absence of word is represented by 0 value.

OR 

Document Vector Table is a table containing the frequency of each word of the vocabulary in each document.

Term frequency is the frequency of a word in one document. Term frequency can easily be found from the document vector table as in that table we mention the frequency of each word of the vocabulary in each document.

Natural Language Toolkit (NLTK). NLTK is one of the leading platforms for building Python programs that can work with human language data.

Correct option is B) Androecium

Correct option is C) Gynoecium
 

1. After removing the petals we can see soft elongated structures attached to these petals. 

2. They are called stamens. 

3. There is a bulb like structure at the top of each stamen that is called pollen sac or anther. 

4. Just below it a fine whitish thread like structure called filament attaches the anther to the petal (in Datura). 

5. So stamen has an elongated filarftent and a bulb like pollen sac. 

6. Stamens of the flowers are together called the male part or androecium.

Correct option is A) Corolla

Supply of water to crops at appropriate intervals is called irrigation. The time and frequency of irrigation varies according to different seasons, crops, and soil types. Two methods of irrigation which help in conservation of water are: 

→ Sprinkler system: This system is more useful on uneven land, having fewer water supplies. In this method, water is supplied using pipes to one or more central locations within the field. When water is allowed to flow under high pressure with the help of a pump, it gets sprinkled on the crops. 

→ Drip system: In this system, water is delivered at or near the roots of plants, drop by drop. This is the most efficient method of irrigation as there is no wastage of water at all. This method is important in areas where water availability is poor.

The correct option is A) Corolla.

Proper watering of crop at right time is called irrigation. Each crop needs a specific amount of water during its various stages of its growth. The irrigation requirements depend on the nature of crop. Some crops like paddy crop (rice crop) need more water whereas other crops like wheat, gram require less water.