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
GalinKa [24]
3 years ago
16

How has the EPA improved air quality over the last 30 years?

Biology
2 answers:
barxatty [35]3 years ago
8 0

Answer:

a

Explanation:

all of the other options make no sence at all

were talking about air not water

also dust storms really!?

and the last one is kind of true but the first one has more detail

Mrrafil [7]3 years ago
3 0

Answer:

a

Explanation:

You might be interested in
What happens to weather patterns when a cold front approaches? What happens to
Soloha48 [4]
When a cold front happens when speaking gusty, there is a sudden drop in temperature, and there is heavy rain. When warm front approaches, The air becomes noticeably warmer and more humid than it was before.
5 0
3 years ago
It is possible for more than one counterculture group to exist inside of a subculture. T/F?
Vladimir [108]

Answer:

true

Explanation:

5 0
3 years ago
Read 2 more answers
Which cells are required to process and present antigens from foreign material as the initial step in the immune response?
Alexxandr [17]
<span>The macrophage is the cell responsible for detecting, engulfing and destroying pathogens and apoptotic cells. These cells process and present antigens (foreign materials) to immunocompetent cells and thus they are the key mediators in the development of all immune reactions.</span>
6 0
3 years ago
During what phase of mitosis are you first able to see distinct chromosomes
Murrr4er [49]

Answer: Prophase

Explanation:

7 0
2 years ago
Read 2 more answers
What metaphor best describes evolution A) random or chaos B)an improve comes routine or C) An architect building from blueprints
galina1969 [7]

Answer: B

Explanation:

Evolution is a process of elimination.  the traits that are successful and help them survive are kept for the next population, because they are abet o survive to repopulate.  So its improvement.  

8 0
3 years ago
Other questions:
  • When is a woman most likely to become pregnant answer.com?
    7·1 answer
  • Why are the bird at midway
    10·1 answer
  • Which use relies on the property of electrical conductivity?
    15·2 answers
  • One of the reasons why statins are effective in reducing the risk of cardiovascular disease is ______.
    5·2 answers
  • Plz help ;-;
    5·1 answer
  • What kind of cells that need to make a lot of protein called
    9·1 answer
  • Which units represent density? Select all that apply.
    12·2 answers
  • Using streamlined shapes in designing aircrafts
    7·1 answer
  • The NADH and FADH2 used by the electron transport chain are normally produced in the mitochondria; however. Select one:
    7·1 answer
  • A population of mosquitoes is exposed to the pesticide DDT for several generations. At the end of that time, most individuals in
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!