Question : What is the radius of the earth?

Option 1: 7456 km

Option 2: 6371 km

Option 3: 5619 km

Option 4: 4728 km

Question : What is the purpose of the Earth's magnetic field?

Option 1: To provide an energy source for life on Earth.

Option 2: To control the Earth's climate.

Option 3: To shield the Earth from solar wind and cosmic radiation.

Option 4: To cause the tides in the ocean.

Question : The ratio of Ram's salary to Shyam's salary is 3 : 4. The ratio of Shyam's salary to Ghanshyam's salary is 5 : 6. What will be the ratio of Ram's salary to Ghanshyam's salary?

Option 1: 3 : 5

Option 2: 5 : 8

Option 3: 4 : 5

Option 4: 3 : 8

Question : P's income is 250 percent of Q's income and P's expenditure is 180 percent of Q's expenditure. If P's income is 400 percent of Q's expenditure, then what is the respective ratio of P's savings and Q's savings?

Option 1: 11 : 5

Option 2: 5 : 2

Option 3: 11 : 3

Option 4: 8 : 3

Question : The majority of Earth's crust is composed of which rock?

Option 1: Igneous

Option 2: Metamorphic

Option 3: Sedimentary

Option 4: Carbonate