Daily Five Apr 18 2017

Daily Five Apr 18 2017


Date: 18/04/2017
All the below notes will also be updated in the ARISE IAS RAG List for systematic revision.
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Prelims Questions

1. Vetti and Kadamai, whose reference was found on Chola inscriptions are
(a) Dance forms
(b) Famous artists
(c) Kind of taxes
(d) None of the above

2. Consider the following statements about tides
1. The strong gravitational pull exerted by the sun and the moon on the earth’s surface causes the tides.
2. Neap tides are the highest tides
3. When the moon is in its first and last quarter, the ocean waters get drawn in diagonally opposite directions by the gravitational pull of sun and earth resulting in neap tides.
Which of the above statements is/are correct?
(a) 1 Only
(b) 2 and 3 Only
(c) 1 and 3 Only
(d) 1, 2 and 3

3. Consider the following statements about nutrients
1. Fats give much more energy as compared to the same amount of carbohydrates.
2. Proteins are needed for the growth and repair of our body and they are called as building blocks of body
3. Vitamins give much more energy than both fats and carbohydrates combined
Which of the above statements is/are Incorrect?
(a) 1 and 3 Only
(b) 1 and 2 Only
(c) 2 and 3 Only
(d) 3 Only

4. Consider the following statements about Rhizobium
1. Lives in the roots of gram, peas, Moong beans and other legumes and provides them with nitrogen.
2. It can take atmospheric nitrogen and convert it into a soluble form.
3. It can make its own food
Which of the above statements is/are correct?
(a) 1 and 2 Only
(b) 2 and 3 Only
(c) 1 and 3 Only
(d) All of the Above

5. Which of the following are methods of soil conservation?
1. Mulching
2. Contour Barriers
3. Rock Dam
4. Inter Cropping
5. Shelter Belt
Choose the correct answer using the codes below
(a) 1, 2 and 4 Only
(b) 1, 3 and 4 Only
(c) 2, 3, 4 and 5 Only
(d) All of the above


Ans:
1. C
The inscriptions of the Cholas who ruled in Tamil Nadu refer to more than 400 terms for different kinds of taxes. The most frequently mentioned tax is vetti, taken not in cash but in the form of forced labour, and kadamai, or land revenue. There were also taxes on thatching the house, the use of a ladder to climb palm trees, access on succession to family property, etc.
2. C
• The strong gravitational pull exerted by the sun and the moon on the earth’s surface causes the tides.
• The water of the earth closer to the moon gets pulled under the influence of the moon’s gravitational force and causes high tide.
• During the full moon and new moon days, the sun, the moon and the earth are in the same line and the tides are highest. These tides are called spring tides.
• But when the moon is in its first and last quarter, the ocean waters get drawn in diagonally opposite directions by the gravitational pull of sun and earth resulting in low tides. These tides are called neap tides.
• High tides help in navigation. They raise the water level close to the shores. This helps the ships to arrive at the harbour more easily. The high tides also help in fishing.
• Many more fish come closer to the shore during the high tide. This enables fishermen to get a plentiful catch. The rise and fall of water due to tides is being used to generate electricity in some places.
3. D
You have asked to identify incorrect one, Vitamins help in protecting our body against diseases. They do not provide any kind of energy.
4. A
Rhizobium cannot make its own food, so it lives symbiotically with legumes.
5. D
Some methods of soil conservation are
Mulching: The bare ground between plants is covered with a layer of organic matter like straw. It helps to retain soil moisture.
Contour barriers: Stones, grass, soil are used to build barriers along contours. Trenches are made in front of the barriers to collect water.
Rock dam: Rocks are piled up to slow down the flow of water. This prevents gullies and further soil loss.
Terrace farming: These are made on the steep slopes so that flat surfaces are available to grow crops. They can reduce surface run-off and soil erosion
Intercropping: Different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash.
Contour ploughing: Ploughing parallel to the contours of a hill slope to form a natural barrier for water to flow down the slope
Shelter belts: In the coastal and dry regions, rows of trees are planted to check the wind movement to protect soil cover

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