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
Marianna [84]
2 years ago
10

Allen pours water into a graduated cylinder. He notices that the surface of the water is curved, as shown below.

Biology
2 answers:
Slav-nsk [51]2 years ago
4 0

Answer:

When water is added to a graduated cylinder, having a surface where the sides of the water look higher than the center means that the curved surface is a concave meniscus which has formed because of surface tension (Choice C).

Explanation:

A meniscus is simply the curvature that the surface of a liquid acquires when it is in a container, such as a graduated cylinder. It is concave when there is attraction between molecules -water and glass- or it can be convex when both surfaces are repelled.

<u>Water is a polar molecule</u>, with the capacity to adhere to the surfaces it comes into contact with. This characteristic causes it to form a concave meniscus, as the outermost molecules adhere to the glass surface, while the surface tension of the water attracts the molecules from the centre downwards, causing the concavity.

Learn more:

Measuring with a graduated cylinder brainly.com/question/4070509

Wittaler [7]2 years ago
3 0

Answer:

is A

Explanation:

Which of the following identifies this phenomenon and explains how it is formed?

Choose 1 answer:

(Choice A, Checked, Correct)

CORRECT (SELECTED)

The curved surface is a concave meniscus which has formed because of capillary action.

Capillary action occurs because the water molecules are more attracted to the cylinder than they are to each other. This causes the upward movement of the water along the sides of the glass, forming a curved surface called a concave meniscus.

You might be interested in
Where are endocrine glands found?
NISA [10]
They are found in the body
6 0
3 years ago
Which choice forms the organic portion of soil?
irina1246 [14]

Answer: The dead plants form the organic part of the soil.  This is because when plants die off they become dirt and mulch which is good for the plants. This is why people make a big deal out of compost. It is because it is healthy and organic for plants.

7 0
3 years ago
Read 2 more answers
What is the resistance of a 20-cm-long column of blood in this artery? assume that resistivity of blood is equal to 1.6 ωm.
Alinara [238K]
The way in which you need to solve this is by using the formula:
<span>R = ρL/A 
</span>That one is the formula that demonstrates <span>Resistance of a wire in Ω.
The formula can be explained like this: 
</span><span>ρ is resistivity of the material in Ω-m </span>
<span>L is length in meters </span>
<span>A is cross-sectional area in m² </span>
<span>A = πr², r is radius of wire in m 
As soon as you have your numbers, you can replace and proceed to get the asnwer</span>
7 0
3 years ago
Describe how physical and chemical changes affect mass
AlladinOne [14]

Answer:

Explanation:

Matter can change form through physical and chemical changes, but through any of these changes matter is conserved. The same amount of matter exists before and after the change—none is created or destroyed. This concept is called the Law of Conservation of Mass.

5 0
2 years ago
What time frame is considered rapid environmental change?
zheka24 [161]
I think its A. If you had options like mine
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which is a highly infectious bacterial disease of the lungs?
    15·2 answers
  • In_____ both species benefit from the interaction.
    12·1 answer
  • When a flu virus enters the body, the immune system creates antibodies made of polypeptide chains to fight the virus. The specif
    13·1 answer
  • How did scientists discover that all living things are made of cells?
    8·1 answer
  • in order to maintain blood glucose homeostasis, which of the following events would likely occur in response to a significant ri
    15·1 answer
  • What kinds of traits are produced by most mutations?
    8·1 answer
  • Viruses that infect prokaryotes are called ____<br> The choices are<br> Virions, phages, or capsids
    15·1 answer
  • Answer the questions based on the information given.
    13·2 answers
  • Replanting trees on a bare hillside is an example of
    9·1 answer
  • Removes water from waste and puts it back into the body; waste turns into solid here. *<br>​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!