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Rainbow [258]
2 years ago
11

What is pollution ????,​

Mathematics
1 answer:
Reil [10]2 years ago
5 0

Answer:

<em><u>Pollution is the introduction of harmful materials into the environment. Landfills collect garbage and other land pollution in a central location. ... They can also be created by human activity, such as trash or runoff produced by factories. Pollutants damage the quality of air, water, and land.</u></em>

Step-by-step explanation:

hope this helps you!!

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PLEASE HELP ME!! Math
IgorLugansk [536]

Answer: D

Step-by-step explanation:

3 0
3 years ago
If a takes person A 11 minutes, person B 21 minutes, and person C 33 minutes to complete the same task individually, then how lo
ziro4ka [17]

Answer:

5.92 min

Step-by-step explanation:

1/11 = person A's rate

1/21 = person B's rate

1/33 = person C's rate

Let t = time working to gether

rt = am't  of work done

(1/11)t = work done by person A

(1/21)t = work done by person B

(1/33)t = work done by person C

(1/11)t + (1/21)t + (1/33)t = 1

231((1/11)t + 231(1/21)t + 231(1/33)t = 231

21t + 11t + 7t = 231

39t = 231

t = 5.92 min

I did that in super detail for you.  Note:  If n = the time to do a job alone, then 1/n = the rate of speed in doing the job.  And, the rate times the time on the job = am't  of work done.  

4 0
3 years ago
Help plssssssssssssssssss
zloy xaker [14]

Answer:

1,075 ft

Step-by-step explanation:

So you need to find area

15 x 25 =375 ft

35 x 20 = 700 ft

add together to get total of both

700 + 375 = 1,075

Hopefully im right!

6 0
3 years ago
PLEASE HELP I DONT HAVE MUCH TIME LEFT!!! URGENT!!! WILL GIVE BRAINLIEST TO FASTEST ANSWER!! Maria and Jamal each have gardens.
storchak [24]

Answer:

3x

Step-by-step explanation:

cuz im not dumb

4 0
3 years ago
Read 2 more answers
At 10:30am,a submarine was 43 feet below the ocean surface.By10:45am,it was 271 feet below the surface. How much did it descend
matrenka [14]

Hi!

Your answer would be:<em> 228ft below the ocean surface.</em>

Reason being: <em>when you subtract 43 from 271, you get 228.</em>

Hope this helps!

If you need anymore help, please let me know!

<em>Yours Truly,</em>

<h2><em>~~~PicklePoppers~~~</em></h2>
4 0
3 years ago
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