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
mihalych1998 [28]
3 years ago
15

Air pollution is caused by A. the sun. B. heavy rainfall. C. human activities but not natural events. D. natural events and huma

n activities.
Biology
1 answer:
Anna71 [15]3 years ago
6 0

Answer:

D . natural events and human activity

You might be interested in
Asthma is a respiratory disorder that causes constriction of the airways. This constriction may cause difficulty in breathing. I
rewona [7]
Decrease inflammation of blocked airways
8 0
3 years ago
Read 2 more answers
Consider the skeleton.
yanalaym [24]

the skeleton has been considered

5 0
3 years ago
Earth's volume is more than ten times as great as Mars's volume? TRUE OR FALSE
nikklg [1K]
True, the answer is true
5 0
3 years ago
Dopamine is a neurotransmitter involved in the reward pathways in the brain, and its decreased activity has been associated with
Snowcat [4.5K]
The answer should be amphetamine a dopamine release agent that triggers the
6 0
3 years ago
Read 2 more answers
Which statements describe the benefits of artificial reefs? Select three options.
Nimfa-mama [501]

Answer:

They can attract marine organisms.

They can prevent beach erosion.

They can attract tourists to the area.

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • How do dissolved salts and other dissolved solids enter the ocean
    5·1 answer
  • An advantage of the current organism classification system is that ______.
    12·1 answer
  • 3. Mitosis and meiosis are similar processes, but they have some very important differences. Explain how mitosis and meiosis are
    5·2 answers
  • At the ends of muscles, the connective tissues merge to form a __________, which attaches the muscle to other structures.
    6·1 answer
  • How do an increase in the organic matter in soil and an increase in soil depth affect the population of plants in an area? A Lar
    15·1 answer
  • the maximum displacement of a particle,within a wave,above or below its equilibrium position, is called
    12·2 answers
  • The products of photosynthesis are carbohydrates and oxygen. Which process uses these substances as reactants ?
    8·2 answers
  • What is the purpose of transcription?
    15·2 answers
  • Pigment in mouse fur is only produced when the C allele is present- Individuals of the cc genotype are white- If color ispresent
    7·1 answer
  • How are organisms classified? (circle all that apply)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!