.Explain how human and physical factors can increase flooding (6 marks) ​

Human factors increasing flood risk: urbanisation , because towns and cities have more impermeable surfaces. deforestation , because removing trees reduces the amount of water intercepted and increases run-off.

•Physical factors are below:
heavy rainfall.
long periods of rain.
snowmelt.
steep slopes.
impermeable rock (doesn't allow water through)
very wet, saturated soils.
compacted or dry soil.

When a lake, river or other aquatic  system  becomes  eutrophic, it can have serious negative effects on other organisms like fish, birds and even people.if an algal bloom is so bad that it causes wide-spread death  in  the  water, the organisms that die will all sink to the bottom and start to decompose.

It's between the sagittarius and perseus arms of the milky way.