chapter 4= managing water sustainably

Question 1

what r variations in precipitation

Answer 1

droughts and floods

Question 2

what r some examples of floods, explain

Answer 2

river floods= when sustain heavy rainfall, water levels rise in the river, and overflow from the banks
flash floods= sudden heavy rainfall in dry areas

Question 3

how does water support the river ecosystem

Answer 3

precipitation provides a regular supply of water so that river ecosystems can live in them

Question 4

how do people use water

Answer 4

recreational, industrial, agricultural, domestic

Question 5

how is water used for industrial purposes

Answer 5

its used to cool down machines, to clean things, used to generate electricity

Question 6

how do human actions lead to water pollution

Answer 6

conveniently throw rubbish into drains, dump toxic waste into the ocean, landfills start to leak

Question 7

how can we manage water sustainably

Answer 7

improve water quality, reduce water consumption, improve water technology and importing water from other countries

Question 8

how do countries improve water quality

Answer 8

they pass laws, eg no dumping toxic waste into he ocean if not get fined.

Question 9

how do countries reduce water consumption

Answer 9

educate the public thru schools, posters and lots more

Question 10

how do countries improve water technology

Answer 10

to develop new ways to conserve and produce water

Question 11

what are Singapore’s 4 national taps

Answer 11

import water, local catchments, NEWater, desalination