Which one among the following is used in making lead pencils?

A wire bound standard resistor uses manganin or constantan.It is because

The horizontal wind circulation near the earth's surface is due to 

1.pressure gradient

2.frictional force

3.coriolis force

Select the correct answer

Match List I with List II and select the correct answer using the code below

    List I                                                         List II

A)Humboldt                                                 1.Namibia-Angola

B)North-atlantic drift                                    2.Chile-Peru

C)Benguela                                                 3.Mozambique-Madagascar

D)Agulhas                                                   4.UK-Norway

Code

A                     B                    C                  D

Which one of the following statements regarding water cycle is correct?

How many elements are there in 5th period of modern periodic table?