Because of gravity... if you want a more detailed answer look it up on google!
The towns are 8 kilometers apart because as you see 6 centimeters equal 2 of the 3 centimeters which means that you add four twice or times it by 2 to get 8
The correct answer is letter B. increase deposition of sediments upstream. The negative effect of using too much water for the irrigation of crops is that it wash out sediments and these sediments are brought down the water streams.
i want to say it is D. because i believe that they are nocturnal animals and they are found in deserts.
