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
Kaylis [27]
3 years ago
7

How much pollution is in urban streams ?

Chemistry
1 answer:
Marizza181 [45]3 years ago
7 0

Explanation: Pollution in urban streams (commonly caused by improperly disposed waste and/or acid rain) always has a negative effect on the environment. <em>Urban rivers are extremely polluted in some areas</em>, such as India. Actions have been taken to clear the streams, and progress has been made.

Hope this helps!

You might be interested in
18. What is assigned a rating of 3 in the yellow diamond of the NFPA 704 symbol.
andrey2020 [161]
OD. Chlorine dioxide
3 0
1 year ago
What is the molarity of a solution made by dissolving 14.8 g of ammonium hydroxide NH4OH, in enough water to make 250.0 mL of so
kicyunya [14]

Answer:

Molarity= 1.69M

Explanation:

m= 14.8, Mm= 35, V= 0.25dm3, C= ?

Moles = m/M= C×V

Substitute and Simplify

m/M= C×V

14.8/35= C×0.25

C= 1.69M

6 0
3 years ago
First to answer both CORRECTLY gets brainleist!
madam [21]

Answer: I am actually studying about Stars, so I got you.

3. As the temperature of a star Increases, it's luminosity increases.

As the temperature of a star decreases, it's luminosity decreases.

4. Hot and Bright. The bigger the star, the hotter it gets is from what I learned.

4 0
3 years ago
Read 2 more answers
A 2.1−mL volume of seawater contains about 4.0 × 10−10 g of gold. The total volume of ocean water is about 1.5 × 1021 L. Calcula
Fiesta28 [93]

Answer:

Total worth of gold in the ocean = $5,840,000,000,000,000

Explanation:

As stated in the question above, 4.0 x 10^-10 g of gold was present in 2.1mL of ocean water.

Therefore, In 1 L of ocean water there will be,

(4.0 x 10^-10)/0.0021

= 1.9045 x 10^-7 g of gold per Liter of ocean water.

So in 1.5 x 10^-21 L of ocean water, there will be

(1.9045 x 10^-7) * (1.5 x 10^-21)

= 2.857 x 10^14 g of gold in the ocean.

1 gram of gold costs $20.44, that is 20.44 dollars/gram. The total cost of the gold present in the ocean is

20.44 * (2.857 x 10^14)

= $5,840,000,000,000,000

8 0
3 years ago
An adult mosquitoes lifespan is about 16 days how many minutes is that
AVprozaik [17]
The answer is 23, 040 minutes. To solve this you can start by changing days in to hours. We know that there are 24 hours in a day. To find how many hours are in 16 days you multiply 24 by 16 which is 384. Next you must find out how many minutes are in 384 hours. we know there are 60 minutes per hour. To find how many minutes are in 384 hours, you multiply 384 by 60. To this you get 23, 040 which is your answer.
3 0
3 years ago
Other questions:
  • Points D and E are midpoints of the sides of triangle ABC. The perimeter of the triangle is 48 units. What is the value of t?
    15·2 answers
  • What is the specific heat of silicon if the temperature of a 4.11 g sample of silicon
    9·1 answer
  • What effect does heat have on a chemical reaction?
    7·1 answer
  • Which is a property of every mixture?
    7·2 answers
  • What determines how molecules are redistributed in diffusion?​
    13·1 answer
  • PLS HELP! WILL MARK BRAINLIEST!!! 50 PTS
    15·1 answer
  • Please help <br> Show your workings
    8·1 answer
  • Describe how you would separate rock salt to obtain salt crystals and pure dry sand.
    5·2 answers
  • Cual es la convención de 746 Hm
    6·1 answer
  • A sample of lead has the density of 58 g/mL and a mass of 15.2g, what is the volume of the lead?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!