Question

1 how does the presence of dams modify temperature and rainfall in surrounding areas? 2 using a digital device and internet watch a video on the influence of cold benguela ocean currents on the adjacent lands in namibia and its environments. note down what you have learnt from the video

Explanation:

1. Dams can affect local climate. They can change evaporation rates which impacts humidity and rainfall. Water bodies behind dams have a moderating effect on temperature.
2. The Benguela - cold ocean current off Namibia's coast has a strong influence on the adjacent lands. It cools the air above it, leading to low - lying fog and arid conditions in the coastal areas. It also affects marine life and the overall ecosystem.

Answer:

1. Dams can modify temperature and rainfall in surrounding areas by changing evaporation rates (increasing humidity and potentially rainfall in some cases) and having a moderating effect on temperature due to the large water body behind them.
2. From the video on the influence of the cold Benguela Ocean currents on adjacent lands in Namibia and its environments, one can learn that the current cools the air above it, creating fog and arid conditions, and also impacts the local marine and terrestrial ecosystems.