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
Proteins have all of the properties except genetic material.
<h3>What do you mean by Proteins?</h3>
Proteins may be defined as naturally emerging, extremely complicated substances that consist of amino acid residues joined by peptide bonds.
Proteins have the following properties:
- They are enzymes.
- Work as signaling molecules in numerous signaling.
- They are involved in the transport of materials.
- They provide a structural arrangement to the cells.
Therefore, proteins have all of the properties except genetic material.
To learn more about Proteins, refer to the link:
brainly.com/question/10058019
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Answer:
Adolescent
Explanation:
Globally about 50% of mental health issues and conditions start at the age of 14. Most of them are not detected and treated. One of the most common causes of mental issues is depression among adolescents. The common factors leading to mental distress among adolescents include exploration of sexual identity, exposure to different social behaviours, money and access to technology.
