The natural flow of rivers can be affected by several factors, such as building dams to provide drinking water, pumping of groundwater, climate change, and building of lands that change how natural water runs into surfaces and into rivers. All of these also disrupt the balance of ecosystem in the area.
True
The greater the object weighs (volume) the heavier it is, and it the object is heavier, the the buoyancy force will be higher
Hope this helps :)
Quantitative and systemic data
