Answer: Coagulation and flocculation are often the first steps in water treatment. Chemicals with a positive charge are added to the water. The positive charge of these chemicals neutralizes the negative charge of dirt and other dissolved particles in the water.
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<span>We are going to use the fact
that 1cm = 0.00001km to convert 2.1cm/year to 0.000021km/year. Now, since Time =
Distance/Velocity, we replace the values from our problem to get: Time = 519km/ (0.000021km/year) which is equal
to 24714285.71 years. We conclude that Los Angles will be directly west to San Francisco
in a little less than 25 million years.</span>
Desalination creates heavily salted brine, which can harm sea life. Desalination also can leak the chemicals used into the "clean" water, resulting in health issues in the humans that drink it. The most effected sea life by the brine released by desalination would be plankton and photoplankton, which take damage from this.
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Answer: Mining is an activity which the earth is dig to obtain minerals and oil reservoirs.
Explanation:
The two environmental consequences that are responsible for filling the valleys are soil erosion and downstream mining causing the contamination of the neighboring water source. Soil erosion is resultant of the mining activity causing the trees to be uprooting from their site and making soil prone to the affect of physical factors like wind and water.
Answer:
grasses and shrubs to guanacos to pumas
Explanation:
has anyone seen grass eat animal before, and I asked my teacher to return this quiz so that I can do it again and proved that "grasses and shrubs to guanacos to pumas" this answer is correct.