56.Mechanical erosion caused by loose solid material during its transportation is termed as

57.When rivers carrying a load enter the sea, their flow gets checked, and much of the material so carried is deposited off-shore. Such deposits result in the formation of

58.Pumice is derived from

59.Which of the following climatic conditions are conductive to mechanical weathering ?1. Hot 2. Cold 3. Wet 4. Dry

60.Basat rock is an example of