Which of the following statements are correct ?
(i) The most expensive means of transport is the air transport.
(ii) The first metro service was started in Mumbai.
(iii) Bullock-cart is the common means of transport in village.
(iv) Camel is called the ship of the desert.
A(i), (iii) & (iv)
B(ii) & (iii)
C(iii) & (iv)
D(i) & (iv)
Pole vaulting is done using bamboo poles. Why are steel poles not used in place of bamboo poles?
A Steel poles are more expensive compared to bamboo poles.
B Steel poles are stronger than bamboo poles.
C Bamboo poles are as hard as steel poles.
D Steel poles are inflexible while bamboo poles are flexible.
Select a figure from the options, which would replace the (?) to complete the pattern in Figure (X).
the answer to this question should be 'A' and the answer key has given it 'C'pls correct this mistake
The object starts from O having a straight line motion along the path OPQRS is represented by the distance-time graph shown in figure. Match the given statements to the different parts of the graph correctly.
(i) Object is moving with maximum speed.
(ii) Object starts moving in reversed direction.
(iii) Object is at rest.
(iv) Average velocity of object is zero.
answer is d
A list of various actions is given below.
(i) Terrace farming
(iii) Making dams
(iv) Setting up new residential areas
(v) Volcanic eruption
(vi) Coal mining
Which of these actions do not lead to global warming?
A(i) and (ii) only
C(ii), (iii), (iv) and (vi) only
D(iii), (iv) and (v) only
why not making dams
In the given options, a boy is looking through a material. Which one of the following represents a translucent material?
D None of these