1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
denis-greek [22]
3 years ago
5

Hydraulic mining was a mining technique first used in 1853. In this type of mining, high-pressured jets of water were used to ex

tract silver and gold from the Earth. Which of the following best explains why the practice was discontinued?
History
2 answers:
erma4kov [3.2K]3 years ago
8 0

Answer: Hydraulic mining was incorporated earlier for gold and silver mining, in which the extremely high pressure water jets are used to remove the overlying rocks in order to obtain economic minerals.

This use of hydraulic mining has been terminated for the following reasons such as-

  1. It reduces the soil fertility, thereby making it unsuitable for agricultural purpose.
  2. Rapid erosion takes place due to the extreme force exerted by the water.
  3. It released a lot of harmful elements such as cyanide, arsenic and other acids that are harmful to living creatures.
  4. An extremely huge amount of water is needed to operate this type of mining.
  5. The harmful elements that are released gets percolated down and contaminates the groundwater.
marishachu [46]3 years ago
6 0

<span>Hydraulic mining, or hydraulicking, is a form of mining that uses high-pressure jets of water to dislodge rock material or move sediment. In the placer mining of gold or tin, the resulting water-sediment slurry is directed through sluice boxes to remove the gold. It is also used in mining kaolin and coal.</span>

<span>HOPE THIS HELPES </span>

You might be interested in
What area did explorers from Portugal focus on exploring? (4 points)
Ludmilka [50]
B. India had many spices China had silk and there had also been many port cities in Africa so ships could get to Asia.
6 0
2 years ago
Which raw materials had to be shipped to the construction sites in large quantities because they were essential for building the
Vlada [557]

oil and iron were essential

7 0
3 years ago
Read 2 more answers
What was the purpose Olive Branch Petition
stellarik [79]
 It was an attempt to assert the rights of the colonists while maintaining their loyalty to the British crown. to best if my knowledge hope this helps you out..
5 0
3 years ago
Read 2 more answers
HELP...This man invented the electric power system in houses and businesses. A- James Watt B- Gottlieb Daimler C- Nikola Telsa D
Zigmanuir [339]

Answer:

C - Nikola Telsa

Explanation:

Hope this helped!

3 0
2 years ago
How does the US involvement in international conflict in organizations impact its domestic policy
Ulleksa [173]
Tryna get points A TRY DSSHBKRSTHNKKSGIKNEUKNSIONG
6 0
2 years ago
Other questions:
  • What was the name of the play that was initially banned by the french king for making fun of the nobility?
    9·1 answer
  • It is normal for the economy to go through cycles of expansion and recession. True Fals
    6·1 answer
  • Prior to 1600 the transatlantic slave trade was virtually monopolized by who
    9·1 answer
  • How did French relations with the Native Americans differ from English and Spanish relations? A. French traders often massacred
    10·1 answer
  • #2 I don't really know how to find my answer even when I looked online and everything
    8·1 answer
  • Attacks from outside were the main cause of the end of the Gupta rulers true or false
    14·1 answer
  • What is the name for a sudden and dramatic change in political power?
    13·2 answers
  • 1. Which of the following officers of the federal government is the equivalent of a state governor?
    14·1 answer
  • How many senators are elected to represent each state?
    6·2 answers
  • The Emancipation Proclamation affected the Union’s Civil War efforts by
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!