Explore topic-wise InterviewSolutions in Current Affairs.

The two ways by which water harvesting can be undertaken are:
(i) Capturing run-off water from roof tops.
(ii) Capturing run-off water from local catchments.

Four changes that can be incorporated in my life style as a move towards sustainable use of available resources are: 

1. I shall reduce wastage of electricity by switching off unnecessary lights and fans. I will use solar lamps instead of electric bulbs and will use CFL instead of traditional bulbs. 

2. I shall reduce the use of petrol by pooling my car or by using public transport where it is necessary. 

3. I shall segregate non-biodegradable waste consisting of plastic, glass, and metal from other waste and send it for recycling. 

4. Whenever I will go shopping I will carry my own jute bag. 

5. I shall pass on my books and notes to my junior instead of disposing of as waste paper

1. We should grow Number of trees around our house.

2. Reducing own vehicles by using public transport system or by walking.

3. Importance should be given for cleanliness.

4. We should avoid usage of Thermal appliances such as heater etc.

1. We should grow Number of trees around our house.

2. Reducing own vehicles by using public transport system or by, walking.

3. There should not be more factories.

4. We must prevent soil erosion.

5. We must reduce the usage of vehicles to avoid air pollution.

We should travel in bus instead of using own vehicles or we should practice walking, we must use LED bulbs or fluorescent tubes in our homes. We must use the lift or taking the stairs, wearing an extra sweater or using a heating device (heater or sigri) on cold days.

a) Forests and wild animals:

1. Cutting valuable trees should be avoided by destroying forest affects the quality of soil and water resources.

2. Hunting should be prohibited.

3. There should be wild sanctuaries which gives protection for wild animals.

b) Water Resources:

1. Water resources should be free from pollution.

2. Excess usage of water should be avoided.

c) Coal and Petroleum:

We should minimise the use of coal and petroleum, because these are fossil fuels. By burning these there are ill effects such as air pollution and acid rainfall etc.

1. We must have come across the five R’s to save the environment: Refuse, Reduce, Reuse, Repurpose and Recycle.

2. We should encourage tree plantation programmes.

3. We must reduce the burning of fossil fuels.

4. Encouragement should be given for harvesting the water.

As an individual, I will try my best to use or consume only minimum and the required amount of food, clothes, toys, books, and electricity.

We should brush our teeth twice a day as bacteria present in the mouth produce acids by degradation of sugar and food particles remaining in the mouth after eating. The best way to prevent this is to clean the teeth using toothpaste which are generally basic. These can neutralize the excess acid and prevent tooth decay.

Associated Value: The learner will be motivated to keep her teeth properly cleaned.

(i) By switching off unnecessary light and fans to save electricity. 

(ii) By repairing leaky taps to save water.

(iii) Not to dump the materials that can be recycled like paper. 

(iv) Plastic bottles of food items can be used to store things.

Four activities to reduce consumption of natural resources:
(i) Reduce excessive use of natural resources like water, fossil fuels, etc.
(ii) Reuse of some resources instead of wasting (throwing) them, like empty bottles.
(iii) Recycle the materials like paper to reduce the pressure on existing natural resources.
(iv) Changes in lifestyle, personal attitudes and practices.

(i) Agreed.
(ii) One should minimize use of water, should not keep the taps open when not in use, should use bucket of water for cleaning purpose, for taking bath, as these practices consume less water.
(iii) |udicious use of resources, environmental friendly nature.

(i) To collect and conserve rainwater during time when it is available in plenty and use it later.
(ii) Conservation of natural resources/Ecological balance.
(iii) Undertaking projects in the school for water harvesting practice/Spreading awareness in the community and promoting this practice amongst masses.

C) Conserving rainfall that the area receives

The hole in the ground collected the water that fell and the grass grew into a brighter green around its edges.

1. rain coat 

2. sail boat 

3. tender coconut 

4. rain bow 

5. fire place

Ilium, ischium and pubis

Pectoral girdle is also known as shoulder girdle.

Nastic movements: These are non-directional movements which are neither towards nor away from the stimulus. Example: Dropping of leaves.

Curvature movements: In such movements plant organs move towards or away from the stimulus. 

Example: Bending of shoot towards a source of light.

1. Why changes occur around us? 

2. Why would we depend on changes in the nature? 

3. What would happen if changes do not occur? 

4. How changes in the nature influence us?

Tropic movements 

1. These movements are always in the direction of the stimulus. 

2. These movements are slow. 

3. These movements are exhibited by all parts of a plant. For example, movement of shoot towards the light and not towards gravity. 

Nastic movements 

1. These movements are neither away nor towards the stimulus. 

2. These movements are fast.

3. These movements are exhibited by the flat organs (like leaves and petals of flowers) of a plant. For example, the bending and drooping of leaves in ‘Touch-me-not’ plant.

(d) transcription

Hershey - Chase experiment.

Hershey and Chase grew some viruses in a medium that contained ³²P radioactive phosphorus, these were allowed to infect E. coli, medium was agitated in a blender. Viral coats and the bacterial cells with viral particles were separated by spinning them in a centrifuge. In this case no radioactivity in the supernatant as the protein coats do not incorporate ³²P, but the viral DNA had ³²P and passed it to the bacterial cell, so radioactivity was detected in the cells, proves that DNA is the hereditary material, They repeated the procedure with radioactive sulphur ³⁵S, in this case no radioactive  was detected in the bacterial cell as S is not incorporated in DNA, while radioactivity was detected in the supernatant with protein coats of viruses.

‘Mysore Malli’

Millet is the term applied to a variety of very small seeds originally cultivated by ancient people in Africa and Asia. They are gluten-free with less glycemic index. 

Types of millet:

1. Major millets – E.g: Ragi (Eleusine coracana) 

2. Minor millets – E.g: Foxtail millet (Setaria italica)

Correct answer is (b) Spermatogonia

The principal coloring agent present in the leaf paste of Lawsonia inermis which give orange to dark red when applied on skin is Lacosone.

Tamil Nadu .

(c) Both statements are correct

Trypsin hydrolyses proteins into polypeptides and Peptones.

Correct Answer is: (c) Marijuana

(d) G.barbadense

Correct Answer is: (d) Brazil

(a) A is correct, B is wrong

(b) Indian gooseberry – Phyllanthus amarus

1. Mango 

2. Capsicum

1. Queen of Species – Cardamom 

2. Black Gold of India – Pepper 

3. King of bitters – Andrographis paniculata

(c) Both statements are correct

(c) Both are correct

(a) All proteins

Correct Answer is: (c) Lysozyme

Ileum is the longest part of the small intestine.

(a) Lamiaceae

Correct Answer is: (b) Dye

Correct Answer is: (c) appendix

Detoxification is one of the functions of liver.

(a) Caesinogen into caesin

Growing children require more amount of protein for their growth and development. Protein deficient diet during early stage of children may lead to protein energy malnutrition such as Marasmus and Kwashiorkor. Symptoms are dry skin, pot-belly, oedema in the legs and face, stunted growth, changes in hair colour, weakness and irritability.

Marasmus is an acute form of protein malnutrition. This condition is due to a diet with inadequate carbohydrate and protein. Such children are suffer from diarrhoea, body becomes lean and weak (emaciated) with reduced fat and muscle tissue with thin and folded skin.