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
Travka [436]
3 years ago
15

Which of the following must always be replaced when a retrofit is performed?

Biology
2 answers:
Volgvan3 years ago
4 0

Answer:

D. Refrigerant oil.

Explanation:

The job of a refrigerant oil is to lubricate the compressor, if you don't replace it, you may lose your compressor and all are gonna be ruined.

That's why is more important. Also, depending on the situation, because every situation aren't the same.

Olegator [25]3 years ago
3 0
The answer is c, hope it helped
You might be interested in
The purposes of zoos and aquariums are the following four reasons. Match the definition with the term.
Igoryamba
QUESTION ONE
Here are the answers:
1. The purpose of zoo described in question 1 is EDUCATIONAL: it provides knowledge about animals' lives.
2. CONSERVATION: It protects the animals from becoming extinct.
3. RESEARCH: It is a source of animal specimens for research studies.
4.ENTERTAINMENT: people go to zoos to relax and to have fun.
QUESTION 2
The statement is TRUE.
Zoo has a lot to offer in term of educating the public and that includes the topic of biodiversity. Biodiversity refers to the variety of living organisms in the world and the relationships that exist among them. Those animals have the way they relate with other organisms. Thus, the topic of biodiversity can be treated using zoo.
7 0
3 years ago
Which of the following best describes how embryological evidence supports the idea that life changes over time?
belka [17]

Based on the options given, the most likely answer to this query is 
A. Some animals exhibit similar stages in embryonic development. Embryonic development is where a fertilized egg undergoes similar development with other animals.


Thank you for your question. Please don't hesitate to ask in Brainly your queries. 
6 0
3 years ago
Read 2 more answers
What is the great difference between male and female?
ad-work [718]

Answer:

Men are, in general, more muscular than women. Women are just over half as strong as men in their upper bodies, and about two-thirds as strong in their lower bodies

5 0
3 years ago
In sickle cell disease variation in one gene causes red blood to end or sickle this means the suckled cells ___
ivolga24 [154]
Your answer is actually idk
5 0
3 years ago
If Planet Y orbits the Sun but does not rotate on its axis at all, how long would a day be on Planet Y?
sertanlavr [38]

Answer:

B, a day would be exactly the same as a year.

Explanation:

I <em>think</em><em> </em>that it would mean that a day would be exactly the same as a year (B).

5 0
3 years ago
Other questions:
  • What did you observe when you mechanically stimulated your retina? what you learned from lecture explains the observation?
    12·1 answer
  • Two of the risk factors for Down's syndrome include which of the following?
    10·1 answer
  • ​a strain or tear on any of the muscles that straighten the hip and bend the knee is known as a/an _____.
    11·2 answers
  • In your own words, what is an antigen?
    8·1 answer
  • Which is an internal stimulus?<br><br> a. cold<br><br> b. noise<br><br> c. pain<br><br> d. daylight
    8·1 answer
  • Which of these changes is a benefit of using only nonpolluting sources of electricity?
    5·1 answer
  • Extra points will give brianliest!!!! IF answered in next 20 mins!
    10·1 answer
  • With regard to enzymes, key is to lock as
    12·2 answers
  • Which vitamin does the human skin synthesize from the Sun’s ultraviolet light?
    13·1 answer
  • Bioaccumulation refers to ______? A.Becoming extinct soon B.Human activities that threaten wild species C.Identify and protect e
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!