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
gladu [14]
4 years ago
12

What resources should the scientist use to research water pollution?

Chemistry
1 answer:
Alla [95]4 years ago
3 0
A scientist needs to check several parameters before coming to a conclusion about the amount of water pollution. The scientists needs to check the amount of dissolved oxygen in the water, temperature of the water, the clarity of the water, the PH level of the water and also the amount of bacteria present in the water. There may be other criteria’s, but the mentioned ones are enough to gauge the amount of pollution in the water. Scientists often takes fish and aquatic plants from the water to be tested to check the amount of pollution indirectly affecting these species.



You might be interested in
which statement is true about the reaction shown by this chemical equation HCl + NaOH ------> NaCl + H2O
NNADVOKAT [17]

Answer:

A. It is exothermic

Explanation:

3 0
3 years ago
Read 2 more answers
Which step in the process of protein synthesis occurs directly after mrna is assembled?
kondor19780726 [428]

Answer:

Translation

Explanation:

Protein synthesis is the process of production of proteins in in the cells of living organisms. Transcription and Translation are the two main steps in the protein synthesis. The first step is completed in nucleus where mRNA is made using DNA as template. The second step i.e. translation occurs in the cytoplasm with the help of Ribosomes. The mRNA synthesized during transcription is pre-mRNA. After the processing it is assembled as mature RNA. After getting assembled the second step of protein synthesis viz. Translation begins in the cytoplasm.

7 0
3 years ago
explain why particles of colloidal solution donot settle down when left undisturbed , while in the case of suspensions they do .
Leni [432]

Answer:

the partial of colloidal are smaller and they are not heavy whereas the partial of suspension are larger but they are heavy and less movement thus they settle down due to gravity

7 0
3 years ago
If hydrochloric acid has a [H+] of 1.2 x 10-2 M, what is the pH?<br> 1.9<br> 0 1<br> 1.2<br> O<br> 8
Vanyuwa [196]

Answer:

<h2>1.9</h2>

Explanation:

The pH of a solution can be found by using the formula

pH = - log [ {H}^{+} ]

From the question we have

pH =  -  log(1.2 \times  {10}^{ - 2} )  \\  = 1.920818...

We have the final answer as

<h3>1.9</h3>

Hope this helps you

7 0
3 years ago
Read 2 more answers
44. Convert the following. Express your answers in
professor190 [17]

Answer:

A =  0.75 ×10² KJ.

B = 3.9 ×10³ dg

C = 0.22 × 10² μl.

Explanation:

A =  7.5 ×10⁴ j to kilo joules

7.5 ×10⁴ / 1000 = 0.75 ×10² KJ.

Joule is the smaller unit while kilo joule is the larger unit. One kilo joule equals to the thousand joule that's why we will divide the given value by 1000 in order to convert into KJ.

B = 3.9 ×10⁵ mg to decigrams.

3.9 ×10⁵ / 100 = 3.9 ×10³ dg

Decigram is larger unit while milligram is smaller unit. One decigram is equal to the 100 milligram. In order to convert the given value into  decigram we have to divide the value by 100.

C = 2.21 ×10⁻⁴ dL to micorliters

2.21 ×10⁻⁴ ×10⁵ = 0.22 × 10² μl.

Deciliter is bigger unit then micro liter . One deciliter equals to the 100000 micro liters. In order to convert the dL into micro liter we have to multiply the given value with 100000.

4 0
4 years ago
Other questions:
  • What is transpiration
    12·2 answers
  • Which of the following correctly shows a neutralization reaction between a hydronium ion and a hydroxide ion?
    11·2 answers
  • Earth's atmosphere is made up of four different layers. In which of the following layers does virtually all of Earth's weather t
    15·1 answer
  • What does an ionic compound form?
    9·1 answer
  • I need to know the element in group 15 in the periodic table .
    10·1 answer
  • Explain the difference between a solar and a lunar eclipse.
    11·1 answer
  • 3. How are the protons held in the
    9·1 answer
  • propose a synthetic route for the synthesis of a named alkanal starting with ethyl formate and grignard reagent. ​
    6·1 answer
  • How are the federal legislative branch and most state legislative branches similar?
    8·1 answer
  • Match the following layer with its definition .
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!