Water and its importance Worksheet-7

Water and its importance Worksheet-7

 

Multiple -Choice Question:

  1. Which of the following plant would not be a good choice for drought in the shade?

(a) Dead Nettle   (b) Plantain Lily  (c) Peony   (d) Periwinkle

 

  1. Which is the better watering regime under general conditions?

(a) weekly, one or two hours         (b) weekly, 20 minutes

(c) every other day, 20 minutes    (d) daily, 10 minutes

 

  1. What continents use water power?

(a) Australia                                     (b) Africa   

(c) South America                           (d) All of these

 

  1. In rooftop rainwater harvesting, how many minutes should you wait before collecting the rainwater?

(a) 15 minutes                                 (b) 30 minutes

(c) One hour                                    (d) None of these

 

  1. What are hydroelectric dams made of and what are their parts called?

(a) Stone, an intake, a stock end, a turbine, a generator, etc.

(b) Wood, an intake, a penstock, a turbine, a generator, etc.

(c) Concrete, an intake, a penstock, a turbine, a generator, etc.

(d) Steel, an intake, a penstock, a turbine, a generator, etc.

 

  1. What is one way to harvest hydroelectric power?

(a) Dams                                           (b) Underground pipes

(c) Wind turbines                            (d) Rooftop rainwater harvesters

 

  1. When using rainwater harvesting, what are the troughs that are attached to the edge of the roof called?

(a) Tanks              (b) Gutters           (c) Filters             (d) Pipes

 

  1. In which country is the Aswan Dam located? (Hint: It is an embankment dam situated across the Nile River)

(a) Russia                                          (b) U.S.A.  

(c) South America                           (d) Egypt

 

  1. In an average year how much rain does Bangalore receive, approximately?

(a) 600 mm         (b) 200 mm         (c) 900 mm         (d) 400 mm

 

  1. Rajasthan has the largest drought-prone area in India. The second largest is:

(a) Karnataka                                   (b) Gujarat

(c) Tamil Nadu                                 (d) Assam

 

Answer Key:

  1. (c)
  2. (a)
  3. (d)
  4. (d)
  5. (c)
  6. (a)
  7. (b)
  8. (d)
  9. (c)
  10. (a)