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
xz_007 [3.2K]
3 years ago
13

Scientists who are investigating what has happened over the years to the people who were exposed to radiation during the 1986 Ch

ernobyl nuclear disaster are conducting what type of study
Chemistry
1 answer:
aleksandrvk [35]3 years ago
8 0

Answer:

Observational study

Explanation:

An investigation of what happened over the years to the people who were exposed to radiation during the 1986 Chernobyl nuclear disaster would be termed <u>an observational study</u> because it will require observing subjects and finding out if there is a kind of correlating factor in the subjects that could indicate the level of exposure to the nuclear radiation.

There are basically two types of research studies:

1. Observational studies

2. Experimental studies

Observational studies involve just the observation of subjects and trying to find out some correlation factors. This kind of study could be prospective when it deals with what could happen in the future based on certain factors or retrospective when it considers what has already happened. An observational study can be cross-sectional, case-only, case-control, or cohort study.

Experimental studies are also referred to as randomized or controlled trial studies. Here, subjects are grouped and each group receives a different treatment in order to isolate the effect of a particular factor or variable relating to the treatment.

You might be interested in
In general, what do you notice about the sections of the periodic table as it
Lapatulllka [165]

Answer:

The answer is rather simple, if you understand electron configurations: the shape of the periodic table mimics the filling of the subshells with electrons.

Explanation:

5 0
3 years ago
A chemical process that takes place in an organism and is essential to life is called?
Firdavs [7]

Answer:

Metabolism

Explanation:

The sum of the chemical reactions that take place within each cell of a living organism and that provide energy for vital processes and for synthesizing new organic material.

8 0
3 years ago
С
muminat
The answer would be C because I did the test and I got 1 question wrong and made an 90% .
5 0
3 years ago
Calculate the freezing point of a 12.25 m 12.25m aqueous solution of propanol. Freezing point constants can be found in the list
vichka [17]

Answer:

∆t(f) = 49.755C

Explanation:

Freezing point is defined as the point in which a liquid changes from liquid to solid state. Therefore, to calculate the freezing point of aqueous solution of propanol

∆t = k × I × m

Where k is cryscopic constant =

I = vant Hoff factor = 2

M = molar concentration = 12.25m

∆t (f) = 1.9 × 12.25 × 2 = 49.755C

5 0
3 years ago
The equation X + Y yields 
masha68 [24]
Most likely the equation yields a new compound XY. This is a synthesis reaction. <span>Synthesis reaction is a reaction where two or more substances combine to form a new compound. It is a reaction which releases energy in the form of heat and light. Therefore, it is an exothermic reaction.</span>
6 0
3 years ago
Other questions:
  • 6. In a hexagonal close-packed crystal, every atom (except those on the surface) has
    12·1 answer
  • If the solubility of a gas in water is 5.0 g/L when the pressure of the gas above the water is 2.5 atm, what is the pressure of
    5·1 answer
  • Noble gases are.
    5·2 answers
  • You heat two substances, A and B. Both substances change color. When cooled, substance A returns to its original color, but subs
    15·2 answers
  • 223Ra decays by alpha emission with a half-life of 11.43 days. For a 1.0g sample of 223Ra, after one half-life, what mass of 223
    9·1 answer
  • What are the implications of increased amount of CO2 in the atmosphere​
    9·1 answer
  • PLEASE HELP!!!
    10·1 answer
  • BRAINLIEST!!!!!! PLEASE HELP ASAP!!!!!! PLEASE ANSWER THESE!!!!! PLEASE DON'T SPAM!!!!!.​
    6·1 answer
  • A change of state is a(n)<br> process.<br> A. irreversible <br> B. reversible
    10·2 answers
  • A solvent was composed of two separate components: water and cyclohexane. If ethyl acetate was added to the solvent, into which
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!