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
Nonamiya [84]
1 year ago
9

What is true about the thickness of the ozone layer?

Biology
2 answers:
inna [77]1 year ago
7 0

Answer:

A

Explanation:

The top answer is correct, over time it has become weaker.

Snezhnost [94]1 year ago
4 0

Answer: <em>The answer is A (It has gradually decreased in the last couple of years)</em>

  • Over the Earth's surface, the ozone layer's average thickness is about 300 Dobson Units, or a layer that is 3 millimeters thick.

  • The thickness of the ozone layer changes due to increasing concentrations of ozone-depleting substances in the atmosphere.
  • Air motions also increase the ver- tical thickness of the ozone layer near the poles, which increases the value of total ozone in those regions. Tropospheric weather systems can temporarily reduce the thickness of the stratospheric ozone layer in a region, low- ering total ozone at the same time.

  • It is thinning due to the release of man-made compounds called chlorofluorocarbons (CFC). The net effect that CFCs have on the ozone layer is to recombine an oxygen atom with an ozone molecule to form two oxygen molecules. From 1978 to 1991, global stratospheric ozone levels have decreased by 3%.

You might be interested in
The secondary structure of proteins results because of _____ bonding between molecules in the protein molecules' backbone.
topjm [15]

Answer:

Hydrogen bonding

Explanation:

The newly synthesised proteins as a result of the process of translation are linear structures formed by linear arrangement of amino acids.

The linear structure of a protein is known as the primary structure which changes its conformation and take the shape of either the helix or the pleated sheet. This helical or pleated sheet structure is known as a secondary structure.

The secondary structure is formed due to the bond formed between the hydrogen of the carbonyl group and the amino group which form the backbone of the protein structure. The hydrogen bond causes the linear polypeptide to form spiral helical or bend pleated sheet.

Thus, Hydrogen bonding is the correct answer.

6 0
3 years ago
Which statement best describes a property of carbon that makes it particularly suited to forming biological macromolecules?
kirill [66]
Carbon is relatively small. non - bulky atom that shares electrons easily .

Hope this helps!!!
3 0
3 years ago
What do scientists do to adult cells to make them behave like embryos?
frozen [14]
Scientists<span> are working on ways to </span>make embryonic<span> stem </span>cells<span> without destroying </span>embryos<span> and to </span>make cells<span> that </span>behave like embryonic<span> stem </span><span>cells


</span>
7 0
3 years ago
Hemophilia a has been diagnosed in a young boy. he has inherited this defective gene from
Montano1993 [528]
The mother because it is an x-linked trait and the boy received a y from his father so therefore he could only get the x from his mother.
6 0
3 years ago
The initial step in the synthesis of the hormone known as vitamin D demonstrates the interaction of multiple organ systems as in
Naddik [55]

Answer: Endocrine system

Explanation: The integumentary system is that is made up of the skin, hair, nails and the Endocrine glands. The following functions of the integumentary system are:

a. It protects skin from any form of damage which could be in form dehydration.

b. It protects the skin by secreting an hormone called melanin which protects the skin from ultra violet radiation.

c. The integumentary system helps in regulating and maintaining the body temperature

d. The skin which is part of the integumentary system secretes Vitamin D which is an essential in building of strong and healthy bones.

3 0
3 years ago
Other questions:
  • In mitochondria, synthesis of ATP uses a proton motive force that is used to
    6·1 answer
  • Which of these is a physical property?
    12·2 answers
  • Differentiate between sub-cellular and acellular particles with examples
    8·1 answer
  • What is the difference between an ion and an atom?
    15·2 answers
  • 33. What is an angiosperm, and what evolutionary advantage does it have?
    13·1 answer
  • The study of living organisms and their origins
    15·2 answers
  • Hemophilia is a sex-linked, recessive trait. Which of the following describes the probability of hemophilia in the offspring of
    11·1 answer
  • Explain how a population of antibiotic-resistant bacteria might develop from non-resistant
    7·1 answer
  • Hi please help i’ll give brainliest
    5·1 answer
  • Fill out the science problem
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!