Which of these is an environmental effect of building dams?
decreased water temperature upstream
soil erosion upstream
increased land fertility downstream
weed growth downstream

The answer is D. I guess it's because when more water is there, weeds get the chance of growing. Especially when it's too much water.

Hope this helps! Brainliest please!

Tamarind can be grown on homesteads, plantations, and wasteland or as a forest tree. methods of propagating tamarind there are two methods of propagating tamarind trees: seed propagation and vegetative propagation. seed propagation: it involves the collection, preparation and direct planting of the seed.answer from google full credit to google.