Engineering, 09.09.2020 02:01 brittanylrodgers99

Which of the following best explains why a freshwater supply is considered a critical issue that is being addressed by sustainable agriculture? Freshwater is needed to irrigate crops. Freshwater is a finite resource. Rainwater must be purified to be drinkable. All rainwater is becoming polluted.

Answers: 1

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:20, rhussein6452

Wiy doeres rere okhn a pump whon working betwon the same pressure range?

Answers: 2

continue

Engineering, 06.07.2019 04:10, kraigstlistt

Agas mixture with a compostion of 55 methane, 30% propane, and 15 butane by volume) is compressed from 1 bar and 25°c to 9bar in a compressor with an isentropic efficiency of 85%. the environment has a temperature of to25 c. determine (a) the exit temperature of the mixture (b) the specific work required to run the compressor (c) the specific entropy generation of the process (d) the specific exergy destruction of the process (e) the second law efficiency of the compressor

Answers: 3

continue

Engineering, 06.07.2019 04:30, meiaalvizo2005

Acompressor compresses a gas, a pump compresses a liquid. for a given pressure ratio, why does it take more work to compress a gas in a compressor than a liquid in a pump? a)- for a given pressure ratio the average specific volume for a gas is much higher than the average specific volume for a liquid. b)- there is no difference. the only difference is the amount of heat generated (not work) c)- for a given pressure ratio the average volume for a gas is much higher than the average volume for a liquid. d)-there is no difference.

Answers: 2

continue

Engineering, 06.07.2019 05:10, amohammad6

Air at 27°c and at atmospheric pressure flows over a fat plate at a speed of 2 m/sec. if the plate is maintained at 93°c, calculate the heat transfer for unit wid h of the plate; assuming the length of the plate along the flow of air is 2 metres.

Answers: 3

continue

You know the right answer?

Which of the following best explains why a freshwater supply is considered a critical issue that is...