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
SpyIntel [72]
3 years ago
8

Write down three problems caused by expansion or contraction.how are these problems overcome?

Biology
1 answer:
masya89 [10]3 years ago
4 0

Answer:

The problems that can be caused by Expansion or Contraction a;long with the solutions are:

Explanation:

  1. The railway tracks made of steel expand during the summer and contract during the winter. This can cause them to become curved during the summer thereby causing rail derailment.In order to prevent this, an air gap is kept in between the railway lines so that they get the space to expand without getting curved.
  2. The electric wires linking the telegraph posts are made up of metals and so they expand in the summer and contract in the winter, which can cause them to tear. This is why the wires are loosely fixed so that they can expand and sag in the summer and contract and tighten in the winter.
  3. Bridges are constructed with joints where some space is maintained to allow the easy expansion and contraction in summer and winter respectively.
You might be interested in
Driving automobiles and burning coal for electricity are examples of two human activities that negatively impact _______.
marissa [1.9K]

Answer:

air quality

Explanation:

because it releases greenhouse gasses that pollute the air

3 0
4 years ago
Explain how solid garbage in landfills can result in air pollution.
ollegr [7]
The gases being released from the ground

8 0
3 years ago
Read 2 more answers
The FBI utilizes these for their database. what is it?
galina1969 [7]
I think the answer is DNA


6 0
3 years ago
What is a function of a bone that results from its relationship with a skeletal muscle?
Marizza181 [45]

The function of a bone that results from its relationship with a skeletal muscle is that it engage in or allows movement of the limbs in which we could see that both the bone and skeletal muscle are working together in order to produce the limb’s movement.

3 0
3 years ago
Read 2 more answers
3. The picture on the right shows the sequence of nitrogen bases on part
Tresset [83]

Answer: C

Explanation: Thymine pairs with Adenine and Cytosine pairs with Guanine.

7 0
3 years ago
Other questions:
  • What is the correct description of the relationship between osmosis and diffusion?
    14·2 answers
  • Differentiation of organisms and their differences ???
    14·1 answer
  • What are the characteristics of a buckeye leaf?
    11·2 answers
  • Which system is responsible for supporting your muscles and protecting your vital organs?
    11·1 answer
  • How do organisms release energy in food to make it useful?
    12·2 answers
  • How would signaling be affected if a mutation caused a g protein to replace gdp with gtp on its own without needing to be activa
    15·1 answer
  • The presence of an epiphyseal plate indicates that _______ the bone is broken. the bone is dead. the bone is increasing in diame
    13·1 answer
  • Carbohydrates<br> act as "ID<br> cards" for cells.<br> Where are they<br> located?
    8·2 answers
  • The practice of designing a business plan based on demand, distribution, growing time, and preferred
    6·1 answer
  • Help? It’s ok if not but I really need it &lt;333
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!