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
sdas [7]
3 years ago
8

Subsurface mining disturbs more land than surface mining true or false

Chemistry
1 answer:
Allisa [31]3 years ago
5 0

Answer:

False

Explanation:

Surface mining disturbs more land compared to subsurface mines.

During surface mining, huge mounds of earth is removed inorder to access mineral deposits. The deeper lying the deposit, the more the earth is removed and disturbed.

In subsurface mines, tunnels and a system of shaft are used to access the ore body. Data about the geometry and positioning of the ore helps to plan how to effectively access it.

You might be interested in
Sulphuric acid is a strong acid but acetic acid is weak acid why​
Lemur [1.5K]

Answer:

sulphuric is a strong acid

Explanation:

Sulphuric is a strong acid because it completely ionises in water while acetic acid partially ionises in water

8 0
3 years ago
In our simulation what did the σ (sigma) stand for?
soldier1979 [14.2K]

Answer:

C -The atomic radius

Explanation:

I took the test :)

6 0
3 years ago
The following reactions take place in the ozone layer by the absorption of ultraviolet light.
____ [38]

Answer:

Option B will require a shorter wave length of light.

Explanation:

The bonding between Ozone (O3) and Oxygen (O2) can be used to explain why the breaking of oxygen into Oxygen radicals will require a shorter wave length.

  • The bond between Oxygen (O2) is a double bond while Ozone (O3) has an intermediate bond between a double bond and a single bond.
  • The bond order of Oxygen (O2) is equals 2 while that of Ozone (O3) is 1.5. Since the bond order of oxygen is higher, it will require more energy to break the bond compared to breaking the Ozone (O3) bond.
  • Recall that Energy is inversely proportional to wave length.
  • So it will require a shorter wave length to break the Oxygen (O2) into its radicals.
5 0
3 years ago
All substances taking part in a certain interaction are shown below: Butane is written followed by an addition sign followed by
OverLord2011 [107]
<span>The Law of Conservation of Mass simply states that the total amount of mass should not change in a chemical reaction that is isolated (no other objects can enter the reaction). The total mass of the reactants must be equal to the total mass of the products. Thus, t</span>he correct estimate of the amount of oxygen used in the interaction is the difference between 133 g and 29 g.
3 0
3 years ago
Read 2 more answers
What sort of evidence would support at least one of the components of the
Yuki888 [10]

Answer:

(not sure) The origin of all cells observed can be traced to previous cells

Explanation:

- not all cells convert energy (?) (this I'm not sure but think so? might be wrong tho)

- not all cells have cell walls e.g. animal cells only have the cell membrane, no cell wall

- Rocks and other nonliving things are composed of cells: non living things are composed of the elements and not cells (unless they were previously alive, then they contain dead cells)

8 0
4 years ago
Other questions:
  • Which of the following of the following is the same for both hydrogen and potassium ?
    9·1 answer
  • An atom has the following electron configuration.
    11·2 answers
  • What is the molarity of an H3PO4solution if 15.0 mL is completely neutralized by 38.5 mL of 0.150 MNaOH? Please explain your ans
    9·1 answer
  • A circuit is shown in the picture above. Energy is transferred first from the battery to the circuit wire and then from the circ
    14·2 answers
  • What is the most mass of (NH4)2CO3 (H=1,C=12,N=14,O=16
    13·1 answer
  • How many millions of years ago did the earliest marine reptiles evolve from land reptiles?
    6·2 answers
  • I need an Honest answer.. and I also didnt know where to post this question under.
    9·2 answers
  • Given the chemical reaction Na2CO3 + AgNO3 , will a precipitate be formed?
    8·1 answer
  • How many liters of o2 do you have if you have 5.8 moles of o2
    13·1 answer
  • Pls help!! I need the answer to this ASAP
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!