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
Crank
4 years ago
14

Air pollution is caused by  A. the sun.  B. heavy rainfall.  C. natural events and human activities.  D. human activities bu

t not natural events.
Biology
2 answers:
zhuklara [117]4 years ago
5 0

It's a tie for me between C. and D. but I am going to say D. I hope this is the right answer for you.

harina [27]4 years ago
4 0

I would say your answer is D) human activities but not natural events.

because we cause it by burning coal, gases from our cars, or harming the enviroment it isnt caused by rainfall or sun.

sorry if im wrong

You might be interested in
What is the main difference between vascular and nonvascular plants?
Fantom [35]
 vascular transports water, distributtes food, and found in the roots, stems, and leaves. <span> vascular plants grow faster and taller.

</span><span>nonvascular plants do not grow taller like the mosses.</span>
6 0
3 years ago
Read 2 more answers
Chaperone proteins or chaperones assist in the proper folding of proteins. Explain the process.
oksian1 [2.3K]

Proteostasis is mediated by chaperone proteins and protease systems, together with cellular clearance mechanisms such as autophagy and lysosomal degradation.

Chaperone proteins control assembly and inaccurate folding by binding to and stabilizing partly or completely unfolded protein polypeptides till the polypeptide chain is completely synthesized. Chaperone proteins also confirm the stability of unfolded polypeptide chains as they are being translocated into the subcellular organelles.

To learn more about Chaperone proteins here

brainly.com/question/28256423

#SPJ4

5 0
2 years ago
Similarities between dna and rna
bonufazy [111]
Both have phosphate-pentose back bone, as well as both have adenine, cytosine and guanine bases. 
5 0
3 years ago
An example of internalization of behaviors as a result of stress is
11Alexandr11 [23.1K]
An <span>example of internalization of behaviors as a result of stress is irritability. irritability is largely affected by external factors that could have shifted one's mood. For example, a person is pressured by his boss everytime for the deadline so when he reaches home, he always shout his younger brothers/sisters.</span>
8 0
3 years ago
Antimicrobial susceptibility testing was performed to screen a novel compound. The MIC was found to be 10ng/mL. Use the followin
Alinara [238K]

Answer:

a) Percent recovery

100%, 70.58%, 4.11%, 1.29% , 0%

b) MBC = 160 ng mL

c) Static

Explanation:

<u>A) Calculate the percent recovery for each group </u>

i) for 0ng mL

( 3.4*10^5 / 3.4*10^5 ) * 100 = 100%

ii) for 10ng mL

( (2.4 * 10^5) / (3.4 * 10^5) ) * 100 = 70.58%

iii) for 20ng mL

( ( 6.4 * 10^5 ) / ( 3.4 * 10^5 ) ) * 100 = Nil

iv) for 40 ng mL

( ( 1.4 * 10^4 ) / ( 3.4 * 10^5 ) ) * 100 = 4.11 %

v) for 80 ng mL

( ( 4.4 * 10^3 ) / ( 3.4 * 10^5 ) ) * 100 = 1.29%

vi) for 160 n mL

percentage recovery = 0%

<u>B) what is the MBC </u>

The value of MBC = 160 n mL because at this concentration CFU/mL = 0

<u>c) determine if the antimicrobial tested is static or cidal </u>

condition : If, the ratio of MBC : MIC  is  ≤4 then novel compound is Cidal

MBC / MIC =  160ng / 10ng = 16 : 1

hence we can conclude that the antimicrobial tested is STATIC

7 0
3 years ago
Other questions:
  • Kathleen, age 7, holds the small ball in both hands in front of her before swinging forward, then backward, with one hand and ba
    5·2 answers
  • If an organism's body cells have 12 chromosomes, how many chromosomes will the sex cell have
    15·1 answer
  • Conservation biologist are most interested in which three evolution mechanisms
    15·1 answer
  • Every trait you see on an organism is a result of that organism's DNA instructing the organism's cells. How does the information
    9·2 answers
  • What does it mean that earlobe attachment is a continuous trait?​
    7·1 answer
  • Explain the role of enzymes in the formation and breakdown of macromolecules.
    5·1 answer
  • Which of the following is an example of a point source of population?
    15·1 answer
  • In humans, brown eyes (B) are dominant over blue eyes (b) and dark hair (D) is dominant over blonde hair (d). If a woman with bl
    10·1 answer
  • PLEASE HELP!!!
    14·1 answer
  • Which cellular process do scorpions most likely go through to
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!