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
miv72 [106K]
3 years ago
5

Construction work is being carried out for a railway route passing close to a mountain slope. Why is it necessary to cover the m

ountain slope with a wire mesh?
Geography
1 answer:
iogann1982 [59]3 years ago
3 0

When building some infrastructure, in this case a railway, that is close to a mountain slope, it is necessary to cover the mountain slope with a wire mesh.

The biggest reason for that is the safety.

The steep mountain slopes can be very dangerous, because the rocks undergo the natural processes of weathering and erosion, which causes the rocks to break up and fall downwards. The railway can be locked in that way because there will be rocks on it, so the trains will not be able to pass further. But what is more concerning is that rocks may start falling directly on the train itself, or on the railway but when the train is passing through, and can cause a tragedy. The train may get pushed of the railway, or the rocks may knock it down or get through the windows, so lot of lives can be lost, as well as lot of damage will be done too.

You might be interested in
The layer of the earth that is composed of rock, yet flows due to extreme heat and pressure, is known as the​
sergeinik [125]

Answer:

Mantle

Explanation:

3 0
3 years ago
The process of nitrogen fixation involved
valkas [14]
I believe the answer is B. decomposers moving nitrogen into consumers.
8 0
3 years ago
Read 2 more answers
Some of our best deep space-telescope images show some galaxies that are 100 times fainter than the faintest objects that can be
Ksenya-84 [330]

Answer:

True

Explanation:

Deep space telescopes are fitted with the faint object cameras, that are way better than ground-based spectroscopically functioning telescopes. The Subaru telescope at Hawaii observed the faintest object ever from a ground-based telescope. But when compared to other deep-space telescopes like Hubble's deep space telescopes it's very small. They have reached up to a magnitude of 31 , which observes 20 times fainter objects .

6 0
3 years ago
Analysis of a rock sample that it contains 6.25% of its original uranium-235. How old is the rock? How do you know?
Andrews [41]

Answer:

The age of the rock = 2800.6 million years = 2.8 billion years.

A simple method of analysis similar to Carbon dating is used to obtain the required age of the rock. Radioactive substances decay according to first order reaction kinetics. So, plugging all the required parameters into the general equation for amount of substance left in a first order decay gives us the age of the rock.

Explanation:

Half life of Uranium-235 = 700 million years (from literature)

The decay of radioactive substances follow first order reaction kinetics.

The general equation is given as

A(t) = A₀ e⁻ᵏᵗ

A(t) = Amount of radioactive substance left after a particular time = 6.25%

A₀ = initial amount of radioactive substance = 100%

t = time that has passed since the beginning = age of the rock = ?

k = decay constant

The decay constant is related to the half life (T) through the relation,

k = (In 2)/T

k = (0.693/700) = 0.00099 /million years

A(t) = A₀ e⁻ᵏᵗ

6.25 = 100 e⁻ᵏᵗ

0.0625 = e⁻ᵏᵗ

In e⁻ᵏᵗ = In 0.0625 = -2.7726

-kt = - 2.7726

t = (2.7726/0.00099) = 2800.6 million years

t = 2.8 billion years.

Hope this Helps!!!

7 0
3 years ago
Redshift is observed when: (1 point)
Usimov [2.4K]

Answer:

When Visible Light from an object is shifted twords the red end of the light spectrum

Explanation:

Hope this answer helps :)

4 0
2 years ago
Other questions:
  • Which organization was established in 1968 to promote trade in the Caribbean?
    5·1 answer
  • As you travel from the North Pole toward the equator, you would expect to see:
    15·2 answers
  • Which pole has a land mass
    10·1 answer
  • What time is it in africa right now in nigeria?
    10·1 answer
  • Who were the two individuals who believed they had the right to control Delaware?
    8·1 answer
  • What was the benifit of living near the nile river?
    6·1 answer
  • In La Niña years, the normal trade winds along the equator become unusually strong, blowing warm water eastward. Along the coast
    14·1 answer
  • Which of the following statements best summarizes the results of scientific studies on the nutritional value of organically grow
    12·2 answers
  • Economics is about to which of the following with resources when it comes to production and distribution of goods and services
    7·1 answer
  • What african country is surrounded by senegal on three sides?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!