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Which part is affected by Fluoride pollution? फ्लोराइड प्रदूषण से मुख्यतः क्या प्रभावित होता है?


Correct Answer :Teeth/ दाँत

Soil conservation is performed by?/मृदा संरक्षण कैसे किया जाता है?

By plantation/पेड़ लगाकर
By cutting trees/पेड़ काटकर
Excessive grazing/अत्यधिक
By heavy irrigation/अत्यधिक सिंचाई

Correct Answer :By plantation/पेड़ लगाकर

Bran oil is obtained from?/ प्रान तेल किससे निकाला जाता है?

Straw/भूसे से
Husk of Paddy/चावल के भूसी से
Roots of Paddy/चावल की जड़ से
Wheat/गेहूँ से

Correct Answer :Husk of Paddy/चावल के भूसी से

Bamboos is?/बॉस क्या है?

Tallest grass/सबसे ऊंची घास

Correct Answer :Tallest grass/सबसे ऊंची घास

Quinine is obtained from? / कुनेन किससे प्राप्त की जाती है?

Withania /विथेनिया से
Cinchona /सिनकोना से
Artopa /एट्रोपा से
Rauwolfia /राउवेल्फिया से

Correct Answer :Cinchona/ सिनकोना से

The algae polysiphonia is used in the extraction of? / पोली साइफोनिया शैवाल से निकाला जाता है?

Iodine/ आयोडीन
Bromine/ ब्रोमीन
Chlorine/ क्लोरीन
None of these/ इनमे से कोई नहीं 

Correct Answer :Bromine/ ब्रोमीन

Food chain starts with? / खाद्य श्रृंखला कहाँ से शुरू होती है ?

Respiration/ श्वसन से
Decomposition/अपधरन से
Photosynthesis/ प्रकाश संश्लेषण से
N2 Fixation/ नाइट्रोजन फिक्सशन से

Correct Answer :Photosynthesis/प्रकाश संश्लेषण

Acid rains contains?/ अम्ल वर्षा में क्या होता है ?

Only Sulphuric acid/केवल सल्फ्यूरिक एसिड 
Only Nitric acid/केवल नाइट्रिक एसिड 
Both Sulphuric acid and Nitric acid/दोनों सल्फ्यूरिक एसिड और नाइट्रिक एसिड 
Only hydrochloric Acid/केवल हाइड्रोक्लोरिक एसिड

Correct Answer :Both Sulphuric acid and Nitric acid/दोनों सल्फ्यूरिक एसिड और नाइट्रिक एसिड 

What is the source of O2 in photosynthesis?/ प्रकाश संश्लेषण में O2 का का स्त्रोत क्या है ?


Correct Answer :H2O.

Resin is a product of:/ रेसिन किस पौधे का उत्पाद है:

Rubber tree/रबर
Banyan tree/बरगद

Correct Answer :Coniferous/ शंकुधारी

Seed is formed from ?

A) Unfertilised ovary
B) Fertilised ovary
C) Fertilised ovule
D) Unfertilised ovule

Correct Answer :Unfertilised ovule

A water fern, which is used as a green manure in rice fields is ?

A) Salvinia
B) Mucor
C) Aspergillus
D) Azolla

Correct Answer :Azolla

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Ratio and Proportion

A certain sum of money is divided between A and B in the ratio of 5/4 : 5/3 and A got Rs. 360/-. Find the total sum of money and B’s share?

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In an election to a municipal council, the votes secured by two candidates are in the ratio 13:19. The elected candidates gets 312 votes more than the second candidate. How many votes are secured by the second candidate?

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Ratio and Proportion

In a school 4/9 of the pupils are boys. There are 125 girls. How many boys are there?

If A:B = 3:4 and B:C = 5:6, find A:C?

IF X:Y = 3:4 AND Y:Z = 4:5, FIND X:Y:Z?


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The area of a square field is 7396 sq metres. Find its perimeter?


Twice the first of three consecutive even integer is 6 more than the second integer. What is the third integers?

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If 2x=3y and 4y=5z, then what is x:z=?

What quantity must be added to each term of the ratio a + b : a – b to make it equal to (a + b)2 : (a – b)2 ?