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
alexandr1967 [171]
3 years ago
5

Air pollution is caused by;

Biology
1 answer:
nalin [4]3 years ago
7 0

Answer:

2.

Explanation:

only 2 of them are the causes of air pollution

You might be interested in
You engineer yeast cells that express the M cyclin during S phase by replacing the promoter sequence of the M cyclin gene with t
Vilka [71]

Answer:

(c) G1 cyclins will be expressed during the S phase

Explanation:

In those cases in which G cyclins are constitutively expressed, the G1 phase will be shortened

3 0
3 years ago
What type of glial cell acts locally to maintain normal electrolyte composition of the cerebrospinal fluid?
nikitadnepr [17]

Answer:

Astrocytes

Explanation:

Astrocytes are specialized glial cells found in the brain and spinal cord, they are responsible for maintaining the electrolytic composition of the cerebrospinal fluid, induce the formation of the blood-brain barrier and act as a support and guide for neurons during migration. They keep the ionic composition of the extracellular fluid of the central nervous system through the water channels, Aquaporin-4 (AQP4) and K channels, located in the pedicle processes of the astrocytes in the perivascular space, these cells exchange K and water in said perivascular medium away from the neurons. Astrocytes selectively edematize during hypotonic stress, while neurons do not.

7 0
3 years ago
What are the atomic masses of<br> protons, neutrons, and electrons?
pshichka [43]

Answer:

Protons, neutrons, and electrons: Both protons and neutrons have a mass of 1 amu and are found in the nucleus. However, protons have a charge of +1, and neutrons are uncharged. Electrons have a mass of approximately 0 amu, orbit the nucleus, and have a charge of -1.

Explanation:

5 0
3 years ago
Read 2 more answers
Which term is correct for one female artic fox?
valentina_108 [34]
A female fox is called a vixen
5 0
3 years ago
Read 2 more answers
Which tool would you use to predict the percentage of offspring that will have a specific trait?i need help
scoundrel [369]
Punnett square predicts the percentage of offspring
5 0
3 years ago
Other questions:
  • The epidermis of the skin is composed of _______ tissue, while the dermis of the skin is composed of _______ tissue.
    14·1 answer
  • Humans cut down trees in a location. This caused an increase in temperature and decrease in rainfall in that location. Which of
    10·2 answers
  • What functional group is found in an aldehyde?
    15·1 answer
  • Which group of chordates has a notochord and includes separate males and females?
    11·1 answer
  • Which of these practices does the most to keep the water table from dropping near a farm?
    5·2 answers
  • __________ are multi-celled, plant-like organisms that usually aren't dangerous in a healthy person.
    5·1 answer
  • Identify the large brown tectonic plate and whether it is oceanic or continental
    8·1 answer
  • What does Nuclease come from? Like what’s it’s source?
    6·1 answer
  • scientists on mars have been investigating the genetic makeup of organisms in this community. use the information provided and y
    11·2 answers
  • What is the longest animal in the world??
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!