Question

Identify the statements that are true (T) or false (F) and choose the correct option.

• A. 1 - T, 2 - F , 3 - T
• B. 1 - F, 2 - T, 3 - F
• C. 1 - F , 2 - T, 3 - T
• D. 1 - T, 2 - F, 3 - F

Answer 1

The correct option is A 1 - T, 2 - F , 3 - T

Global warming leads to deleterious changes in the environment resulting in odd climatic changes such as the El Nino effect.

El Nino is a climate pattern that describes the unusual warming of surface waters in the eastern Pacific Ocean. It is a climate pattern that takes place every 2-7 years.

Normally, ocean winds are such that warm surface water is pushed towards the western Pacific, where it borders the continents of Asia and Australia. Convection above the warm surface waters brings increased precipitation and this contributes to increased rainfall around the western Pacific regions.

However, during an El Nino event, warm surface water moves eastward, from the western Pacific region to the eastern pacific region. As a result, rainfall increases drastically in the eastern Pacific region, contributing to coastal floods that lead to the destruction of many homes, crops and also hinder transportation. It brings droughts to the western Pacific regions which threaten the region’s water supplies, as reservoirs dry and rivers land up carrying less water. Agriculture, which depends on water for irrigation, is also hampered.