World Geography - General Knowledge Questions and Answers

View in English View in Hindi

In the structure of planet Earth, below the mantle, the core is mainly made up of_____?

A)

aluminium


B)

silicon


C)

chromium


D)

iron



Correct Answer :

iron


Explanation :

The planet is made up of three main shells: the very thin, brittle crust, the mantle and the core.
The core forms only 15 percent of the Earth's volume, whereas the mantle occupies 84 percent.

The core is made primarily of iron.

Magma that reaches the Earth's surface and then solidifies is called________?

A)

quartz


B)

lava


C)

granite


D)

silicates



Correct Answer :

lava


Explanation :

volcano an opening in the earth's crust through which magma or gases can erupt onto the surface. When magma reaches the surface from beneath water or air, it is called lava.

Isotherms are the lines of equal_______?

A)

pressure


B)

temperature


C)

rainfall


D)

height



Correct Answer :

temperature


Explanation :

A line connecting points of equal temperature is called an isotherm.

Which of the following gases in the atmosphere absorbs heat from the Sun’s radiation and the Earth's surface?

A)

Neon


B)

Carbon dioxide


C)

Argon


D)

Nitrogen



Correct Answer :

Carbon dioxide


Explanation :

Water vapor, carbon dioxide, methane, and other trace gases in Earth's atmosphere absorb the longer wavelengths of outgoing infrared radiation from Earth's surface. These gases then emit the infrared radiation in all directions, both outward toward space and downward toward Earth.

Latest Updates

Fill in the blank

I ________ station before the train arrived.

If I ______ a king, I would help everyone.

Radha___________her daughter for an hour.

Errors Identification

Find out which part of the sentence below has an error and mark the option accourdingly -
Sohan was married in 1990 and have three children.

Find out which part of the sentence below has an error and mark the option accourdingly -
There is no money in the bank in Ram Singh's and Rama's joint account.

Direction

Swapnil start from his home and walked 35 km towards east, after that he turned to his right and walked 20 km. He again turned to his right and walks 35 km. Finally, he turned to his left and walked 20 km and reached his office. How far is his office from his home?

Numbers

How many 2 digit numbers are divisible by 6?

HCF and LCM

Find the smallest square number which is exactly divisible by 3, 5, 15, 18, 20 and 24?

HCF and LCM of two numbers are 82 and 574 respectively. if one of the numbers is 287, find the second number?

Numbers

How many numbers between 1200 to 1500 are multiple of 13?

Find the total number of terms in the series : -3, 1, 5, 9,............., 101 ?

Find the sum of the first 20 terms of the series : 8, -3, 11, -6, 14, -12, 17, -24,....... ?

Series

Find the missing term in the given series - 101, 120, 145, 168, (?), 224

Find the missing term in the given series - 11A13, 17E19, (?), 31O37, 41U43

Find the missing term in the given series - 2,4,8,3,9,27,4,16,(?),5,25,125

Agriculture

Which gas is fixed by Rhizobium bacteria present in the root nodules of a pea plant ?

Chemistry

The formation of sulphurous acid involves ?

The acid present in soft drinks is ?