Geography Quiz 3

1. The axis of the earth magnetic field is inclined at 23° to the geographic axis of the earth. 
2. The earth’s magnetic pole in the northern hemisphere is located on a peninsula in northern Canada. 
3. Earth’s magnetic equator passes through Thumna in South India. 

Which of the statements is/are correct?

1) Total land area of earth is approximately 1475 lakh square kilometres. 
2) Ratio of land area to water area of earth is approximately 1: 4. 
3) Maximum percentage of earth’s water is in the Pacific Ocean. 

Which of the statements given above are correct?

1. Development of a fault 
2. Movement along a fault 
3. Impact produced by a volcanic eruption 
4. Folding of rocks 

Which of the above cause earthquakes?

I. Most magmas are a combination of liquid, solid and gas. 
II. Water vapour and carbon dioxide are the principal gases dissolved in a magma.
III. Basaltic magma is hotter than the silicic magma. 
IV. The magma solidified between sedimentary rocks in a horizontal position is known as dike. 

Which of these statements are correct?

I. The intensity of earthquake is measured on Mercalli scale. 
II. The magnitude of an earthquake is a measure of energy released.
III. Earthquake magnitudes are based on direct measurements of the amplitude of seismic waves. 
IV. In the Richter scale, each whole number demonstrates a hundredfold increase in the amount of energy released. 

Which of these statements are correct?

I. Sedimentary rocks are formed at Earth’s surface by the hydrological system. 
II. The formation of sedimentary rocks involves the weathering of preexisting rocks.
III. Sedimentary rocks contain fossils. 
IV. Sedimentary rocks typically occur in layers. 

Which of these statements are correct?