A: The nomadic herders slaughter their animals for meat. R: Animals form the chief source of food and livelihood for nomadic herders.

A: The life expectancy in European countries is very high. R: European countries have low mortality rate.

A: Exploitation of equatorial rain forest of Amazon basin is not easy. R: This region is very rich in several types of deadly animals and insects.

A: India built dams and reservoirs to manage water resources. R: India had enough experience in canals.

A: The Sea remains free from ice from British Columbia to Bering Sea. R: Air moving off the comparatively warm waters of North Pacific Drill gives the coastal areas of British Columbia a warmer climate.

A: The monsoons arrive suddenly in India in June. R: The monsoonal low pressure trough is well-developed over India.

Statement: The patient's condition would improve after operation. Assumptions: I. The patient can be operated upon in this condition. II. The patient cannot be operated upon in this condition

A: Soils in some parts of Punjab, Haryana and Rajasthan are saline. R: Evaporation exceeds precipitation.

Statement: Detergents should be used to clean clothes. Assumptions: I. Detergent form more lather. II. Detergent helps to dislodge grease and dirt.