Q1.What phenomenon is characterized by vibrations of the earth?

Q2.Why are flood plains considered very fertile?

Q3.What landform can sea caves eventually turn into?

Q4.Which type of lake is formed by a meandering river and has a crescent shape?

Q5.What is a natural cavity on weak rocks formed by the action of waves called?

Q6.How many layers is the Earth's atmosphere divided into, starting from the earth's surface?

Q7.Which layer of the atmosphere is characterized by the occurrence of almost all weather phenomena like rainfall, fog, and hailstorm?

Q8.Which atmospheric layer is considered most ideal for flying aeroplanes due to being almost free from clouds and associated weather phenomena?

Q9.In which layer of the atmosphere do meteorites burn up upon entering from space?

Q10.The layer of ozone gas, which protects from the harmful effects of the sun rays, is primarily found in which atmospheric layer?