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
andreyandreev [35.5K]
3 years ago
7

How and why has the air quality changed in the United States over the last 30 years?

Biology
1 answer:
Mars2501 [29]3 years ago
6 0

Answer:

It has gotten worse.

Explanation:

In the past 30 years, air quality in the United States has declined almost exponentially. Pollution is the main reason for the declination of air quality in the United States, but there are different kinds of pollution, including light pollution, noise pollution, air pollution, water pollution, etc. Air pollution can be caused by primary or secondary pollutants. Primary pollutants include carbon, nitrogen, and sulfur oxides as well as just general particles in the air. Secondary pollutants are formed when pollutants are exposed to sunlight via chemical reactions.

You might be interested in
Compare the process of mummification with the process of petrification
ICE Princess25 [194]
The strategies for preserving, or treating the dead body, that the old Egyptians utilized is called Mummification. Utilizing exceptional procedures, the Egyptians expelled all dampness from the body, leaving just a dried shape that would not effortlessly rot. Mummification was polished all through the vast majority of early Egyptian history.
5 0
3 years ago
The diagram shows a phase of mitosis.
Yuliya22 [10]

Answer:

The right answer is Spindle.

In cell division, the mitotic spindle or achromatic mitotic apparatus of a cell refers to a structure of microtubules arranged in a spindle-shaped (i.e. swollen in the middle) bipolar assembly.

Explanation:

Please mark brainliest and have a great day!

8 0
4 years ago
Read 2 more answers
NEED HELP DUE TODAY PLZ HELP ME I AM STUCK PLZ PLZ PLZ HELP ME!!!!
Mnenie [13.5K]

Answer:

A. Chloroplasts

Explanation:

These are cells that are found in plant cells but not animal cells.

8 0
3 years ago
Read 2 more answers
Relate the balance of predator and prey to carrying capacity.
Ede4ka [16]

Answer:

show the diagram bro

Explanation:

ok bye

7 0
3 years ago
What is the type of sponge that mimics a synthetic sponge?
jekas [21]
A sea sponge is what mimics a synthetic sponge
3 0
3 years ago
Other questions:
  • The Hardy-Weinberg principle states that evolution will not occur in a population when environmental conditions are stable. When
    7·2 answers
  • Help me guys please :(
    11·1 answer
  • Which type of rna brings the information in the genetic code from the nucleus to other parts of the cell (like the ribosome)?
    15·1 answer
  • Which system transports nutrients to body cells? A. respiratory system B. muscular system C. skeletal system D. circulatory syst
    6·2 answers
  • The lethal tumor dose is defined as the dose that will eradicate what percentage of the tumor yet preserve normal tissue
    6·1 answer
  • Which two processes form a cycle with the products of one process becoming the reactants of the other
    12·1 answer
  • Draw a neat and labelled diagram of a plant cell based on the diagram above in (i) give a suitable term for each the following d
    5·1 answer
  • It is the sequence of nucleotides in our DNA that makes each one of us unique. Specifically, it is the sequence of nucleotides i
    6·2 answers
  • Which statement best describes homeostasis in a cell?
    10·1 answer
  • What do biologist call living things​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!