(1) The sun is________ years old.
Ans:-5 billion
(2) The sun is_____kms away from the earth.
(A) 5 crore
(B) 10 crore
(C) 15 crore
(D) 20 crore
Ans:-(C) 15 crore
(3) The sun is 1,300 times bigger than the size of the earth .(Say true or false )
Ans:-false
(4) The sun is just like______ a bomb .
Ans:- Hydrogen
(5) The sun produces energy by converting Hydrogen into_____ .
Ans:- Helium
(6) The temperature on the surface of the sun is about_____ ℃.
(A) 1600
(B) 6100
(C) 610
(D) 160
Ans:-(B) 6100
[1] In India the sun usually shines very brightly. That is why the Indian summer is extremely hot and long. All of us have experienced the hot summer days. We feel restless during this season. The strong sun - rays cause sun-strokes, too. We are forced to protect ourselves from the harsh rays of the hot summer sun. However, we have invented many ways of protecting ourselves from the scorching heat.
Ans:-(B) 6100
EXERCISE:-3
◆ Read the paragraph and answer the questions : ( આપેલો ફકરો વાંચો અને પ્રશ્નોના જવાબ આપો . )[1] In India the sun usually shines very brightly. That is why the Indian summer is extremely hot and long. All of us have experienced the hot summer days. We feel restless during this season. The strong sun - rays cause sun-strokes, too. We are forced to protect ourselves from the harsh rays of the hot summer sun. However, we have invented many ways of protecting ourselves from the scorching heat.
(1) In India , the sun usually shines very
(A) dully
(B) speedily
(C) brightly
(D) darkly
Ans:- (C) brightly
(2) The Indian summer is _____
(A) short and hot
Ans:- (C) brightly
(2) The Indian summer is _____
(A) short and hot
(B) long and hot
(C) cool and hot
(D) cool and long
Ans:-(B) long and hot
Ans:-(B) long and hot
(3) Why is the Indian summer very hot ?
Ans:- In India the sun usually shines very brightly, so the Indian summer is very hot and long. OR The Indian summer is very hot and long because In India the sun usually shines very brightly.
(4) How do we feel in summer ?
Ans:- In India the sun usually shines very brightly, so the Indian summer is very hot and long. OR The Indian summer is very hot and long because In India the sun usually shines very brightly.
(4) How do we feel in summer ?
(A) active
(B) restful
(C) lazy
(D) restless
Ans:- (D) restless
(5) What do strong sun - rays cause ?
Ans:-The strong sun - rays cause sun - strokes .
Ans:- (D) restless
(5) What do strong sun - rays cause ?
Ans:-The strong sun - rays cause sun - strokes .
(6) What force us to protect ourselves from hot summer sun ?
(A) red rays of moon
(B) cool and clam effect of sun
(C) harsh rays of the hot summer sun
(D) none of these
Ans:-(C) harsh rays of the hot summer sun
(7) Harsh means
(A) strong=severe
Ans:-(C) harsh rays of the hot summer sun
(7) Harsh means
(A) strong=severe
(B) weak
(C) rude
(D) nice
Ans:-(A) strong=severe
Ans:-(A) strong=severe
(8) Which word in the paragraph means ' burning' ?
(A) strong
(A) strong
(B) protecting
(C) bright
(D) scorching
Ans:- ( D ) scorching
(9) We have____ many ways of protecting ourselves from the scorching heat.
(A) played
Ans:- ( D ) scorching
(9) We have____ many ways of protecting ourselves from the scorching heat.
(A) played
(B) clear
(C) invented
(D) desire
Ans:-(C) invented
[2] Now we have found a way to use the hot rays of the sun. The scientists have successfully converted the heat from sun-rays into electricity. As you know we need energy to run vehicles, to light our homes and streets, to cook food, to run factories, even to run our television sets and computers. We make use of different kinds of energy for different purposes. In the same way, we get energy from various sources. These sources are coal, petrol, water, wind and so on.
(1) What have the scientists done ?
Ans:- The scientists have successfully converted the heat from sun - rays into electricity .
(2) Converted means______ .
(A) thrown into
Ans:-(C) invented
[2] Now we have found a way to use the hot rays of the sun. The scientists have successfully converted the heat from sun-rays into electricity. As you know we need energy to run vehicles, to light our homes and streets, to cook food, to run factories, even to run our television sets and computers. We make use of different kinds of energy for different purposes. In the same way, we get energy from various sources. These sources are coal, petrol, water, wind and so on.
(1) What have the scientists done ?
Ans:- The scientists have successfully converted the heat from sun - rays into electricity .
(2) Converted means______ .
(A) thrown into
(B) used for
(C) covered for
(D) changed into
Ans:-(D) changed into
(3) Why do we need energy ?
Ans:-we need energy to run vehicles, to light our homes and streets, to cook food, to run factories, even to run our television sets and computers.
(4) Food can be cooked with energy from the sun.(Say true or false)
(3) Why do we need energy ?
Ans:-we need energy to run vehicles, to light our homes and streets, to cook food, to run factories, even to run our television sets and computers.
(4) Food can be cooked with energy from the sun.(Say true or false)
Ans:-true
(5) We make it possible to use different sources of energy for different purposes (Say true or false)
Ans:-true
(6) We also get energy from various sources. (Say true or false)
Ans:-true
(7)What are the different sources of energy ?
Ans:-The different sources of energy are coal , petrol , water , wind and so on .
[3] Scientists have generated electricity from the sun-rays, In fact, scientists believe that in a warm country like India , the sun can be a major source of energy. During recent times, numerous experiments have been conducted in Gujarat to tap this natural source of energy. The heat from the sun-rays is utilized to produce electricity. People have already started making use of solar cookers, solar heaters, solar batteries, etc.
(1) India is a warm country.(Say true or false)
Ans:-true
(2) What can be a major source of energy in India ?
Ans:-The sun can be a major source of energy in India .
(3) Say the nearest meaning of 'produce' ?
(5) We make it possible to use different sources of energy for different purposes (Say true or false)
Ans:-true
(6) We also get energy from various sources. (Say true or false)
Ans:-true
(7)What are the different sources of energy ?
Ans:-The different sources of energy are coal , petrol , water , wind and so on .
[3] Scientists have generated electricity from the sun-rays, In fact, scientists believe that in a warm country like India , the sun can be a major source of energy. During recent times, numerous experiments have been conducted in Gujarat to tap this natural source of energy. The heat from the sun-rays is utilized to produce electricity. People have already started making use of solar cookers, solar heaters, solar batteries, etc.
(1) India is a warm country.(Say true or false)
Ans:-true
(2) What can be a major source of energy in India ?
Ans:-The sun can be a major source of energy in India .
(3) Say the nearest meaning of 'produce' ?
(A) conduct
(B) generate
(C) start
(D) utilize
Ans:-generate
(4) During recent times, numerous experiments have been conducted in Gujarat to tap______
(A) natural gas
Ans:-generate
(4) During recent times, numerous experiments have been conducted in Gujarat to tap______
(A) natural gas
(B) natural source of energy
(C) natural source of water
(D) all of these
Ans:-(B) natural source of energy
(5) The heat of the sun-rays is utilized to produce :
(A) rain
Ans:-(B) natural source of energy
(5) The heat of the sun-rays is utilized to produce :
(A) rain
(B) electricity
(C) heat
(D) cooling effect
Ans:-electricity
Ans:-electricity
(6) What have the people started using ?
Ans:- The people have started using solar cookers, solar heaters, solar batteries, etc.
(7) Which of the following statement is false ?
(A) We can generate electricity form the sun-rays.
(B) We can generate coal from the sun-rays.
(C) In India water is a source of energy.
(D) In India, sun is the major source of energy.
Ans:-(B) We can generate coal from the sun-rays.
[4] The energy produced from the solar rays can also light bulbs and keep our homes, offices and streets illuminated. There are some villages and industrial areas in Gujarat where this source of energy is used to light up the streets at night. Thus, with their innovative ideas and hard work, scientists have turned the bane into a blessing.
(1) The energy produced from moon rays can also light bulbs. (Say true or false)
Ans:- false
(2) "Illuminated" means _____
(A) heated
Ans:- The people have started using solar cookers, solar heaters, solar batteries, etc.
(7) Which of the following statement is false ?
(A) We can generate electricity form the sun-rays.
(B) We can generate coal from the sun-rays.
(C) In India water is a source of energy.
(D) In India, sun is the major source of energy.
Ans:-(B) We can generate coal from the sun-rays.
[4] The energy produced from the solar rays can also light bulbs and keep our homes, offices and streets illuminated. There are some villages and industrial areas in Gujarat where this source of energy is used to light up the streets at night. Thus, with their innovative ideas and hard work, scientists have turned the bane into a blessing.
(1) The energy produced from moon rays can also light bulbs. (Say true or false)
Ans:- false
(2) "Illuminated" means _____
(A) heated
(B) lighted
(C) cleaned
(D) cooled
Ans:-(B) lighted
Ans:-(B) lighted
(3) In Gujarat this source of energy is used to light up the streets in some areas at night.(Say true or false)
Ans:-true
(4) Which word in the paragraph means 'new'?
Ans:-true
(4) Which word in the paragraph means 'new'?
(A) solar
(B) bane
(C) idea
(D) innovative
Ans:-(D) innovative
(5) Which of the following statement is true ?
(A) There are some villages where solar energy is used to light up streets.
(B) The energy produced from water is used to cook food.
(C) Solar energy cannot be used to light up homes and streets.
(D) There is no village where solar energy is used to light up streets.
Ans:-(A) There are some villages where solar energy is used to light up streets.
(6) With their innovative ideas, scientists have turned_____
(A) blessing into bane
Ans:-(D) innovative
(5) Which of the following statement is true ?
(A) There are some villages where solar energy is used to light up streets.
(B) The energy produced from water is used to cook food.
(C) Solar energy cannot be used to light up homes and streets.
(D) There is no village where solar energy is used to light up streets.
Ans:-(A) There are some villages where solar energy is used to light up streets.
(6) With their innovative ideas, scientists have turned_____
(A) blessing into bane
(B) Solar energy into bane
(C) bane into a blessing
(D) bane into solar energy.
Ans:- (C) bane into a blessing
Ans:- (C) bane into a blessing
EXERCISE:-4
◆ Match 'A' with 'B' appropriately :A અને B વિભાગને યોગ્ય રીતે જોડો.વિભાગ A | વિભાગ B |
(1) Solar energy | (A) A set of planets moving around the sun |
(2) Solar system | (B) Power produced by the sun |
(3) Restless | (C) Burning |
(4) Sun – stroke | (D) Uneasy |
(5) Scorching | (E) Changed |
(6) Foreigners | (F) Illness caused by too much exposure to the sun |
(7) Converted | (G) Persons born in or coming from another country. |
ANSWER |
(1) - (B) |
(2) - (A) |
(3) - (D) |
(4) - (F) |
(5) -(C) |
(6) - (G) |
(7) - (E) |
EXERCISE:-5
◆ Say whether the following sentences are true or false against the sentence ( નીચેના વિધાન સાચા છે કે ખોટા તે દરેક વાક્યની સામે લખો.)(1) Solar energy is the energy from a bright planet._____
Answer : false.
(2) Solar energy can illuminate our homes . _____
(2) Solar energy can illuminate our homes . _____
Answer : true
(3) Scientists convert the sun - rays into electricity .___
(3) Scientists convert the sun - rays into electricity .___
Answer : false
(4) Food can be cooked with energy from the sun . ____
(4) Food can be cooked with energy from the sun . ____
Answer : true
(5) The sun is the only source of energy . _____
(5) The sun is the only source of energy . _____
Answer : false
(6) There is a ray of hope that the sun will solve our problems .___
(6) There is a ray of hope that the sun will solve our problems .___
Answer : true
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