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Name the city where whole public tra...

Name the city where whole public transport system (buses) runs on CNG.

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Delhi
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In the diagram of human male reproductive system given below : (i) Label the parts A and B. (ii) Name the hormone produced by organ 'X'. What is the role of this hormone in the human male? (iii) Mention the name of substances that are transported by tubes. (i) C and (ii)

(a) Name the human male reproductive organ that produces sperms and also secretes a hormone. Write the functions of the secreted hormone. (b) Name the parts of the human female reproductive system where- (i) Fertilisation takes place (ii) Implantation of the fertilised egg occurs. (c) Explain how the embryo gets nourishment inside the mother's body.

a] Name the parts of the human female reproductive system where i] fertilisation takes place, ii] implantation of the fertilised egg occurs. b] Explain how the embryo gets nourishment inside the mother's body. c] Write the function of following parts in human female reproductive system: i] Ovary ii] Oviduct iii] Uterus d] Describe in brief the structure and function of placenta. OR Explain the structure and important role of placenta during gestation period of woman.

Explain the physical significance of the equation MvecA=vecF_(ext) , where 'M' is the mass of the whole rotating body and vecA is the acceleration of the centre of mass of the system of particles.

X is a human being with the reproductive oval shaped almond sized organ Y which releases mature gamete Z monthly once that goes into tube like structure A where it fuses with another gamete called B to form a new cell C. This cell C divides vigorously to form a ball of cells D which gets embedded in the thick lining of organ E of the reproductive system of X where it grows and develops into a foetus. i] Identify X, as male or female. ii] Name the reproductive part Y and give its two functions. iii] Name the gametes Z and B. Iv] Name the process which leads to the formation of C and Identify C. v] Name the ball of cells D. vi] Identify the organ E.

The owner of a taxi company decides to run all the taxis on CNG fuel instead of petrol/diesel. Taxi charges in city comprise of fixed charges together with the charge for the distance covered. For a journey of 13 km, the charge is Rs. 129 and for a journey of 22 km, the charge is Rs. 210. [i]What will a person have to pay for traveling a distance of 32 km? (ii) Why did he decided to use CNG for his taxi as fuel

OSWAAL PUBLICATION-ENVIRONMENTAL ISSUES -TOPIC - 2 ( MULTIPLE CHOICE QUESTIONS.)
  1. Name the city where whole public transport system (buses) runs on ...

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  2. Non - biodegradable pollutants are created by :

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  3. According to the Central Pollution Control Board, particle that are...

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  4. The material generally used for sound proofing of rooms like a record...

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  5. Compressed Natural Gas (CNG) is :

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  6. World's most problematic aquatic weed is :

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  7. Which of the following causes biomagnification ?

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  8. The expanded form of DDT is :

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  9. Which of the following material takes the longest time of biodegrad...

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  10. Choose the incorrect statement.

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  11. Among the following which one causes more indoor chemical pollution...

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  12. The green scum seen in the fresh water bodies is :

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  13. The loudness of a sound that a person can withstand without discomfort...

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  14. The major source of noise pollution , world wide is due to :

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  15. Match correctly the following and choose the correct option: The...

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  16. Catalytic converters are fitted into automobiles to reduce emission of...

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  17. Why is it necessary to remove sulphur from petroleum products?

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  18. Which one of the following impurities is easiest to remove from waste ...

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  19. Which one of the following diseases is not due to contamination of wat...

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  20. Nuisance growth of aquatic plants and bloom forming algae in natural w...

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  21. Algal blooms impart a distinct colour to water due to:

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