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
ser-zykov [4K]
4 years ago
14

Why does the investigator in an experiment change only one varvariable

Geography
1 answer:
In-s [12.5K]4 years ago
8 0
When people perform experiments of any sort, the professional people only change one variable so that they know what is being changed. For instance if I compared the effect of the growth of flies, and one group had more food and cleaner water, and the other group had neither, it would be pointless. It would be pointless because even if the experimental results were a success, you wouldn't know for sure which variable caused the change, the water or the food variable. That's why there can only be one man-made variable at a time.
Hope this helps!
You might be interested in
Compare (similarities) and contrast (differences) the following types of waves and their effect on the abundance of organisms in
marta [7]

Answer:

A. Tsunamis:

Tsunamis usually cause the greatest amount of destruction in comparison to other waves. There are massive waves that can cause the destruction of most ecosystems.

Explanation:

  • Tsunamis cause large displacement of the water bodies and are generally known as the killer waves.
  • The tidal waves are a regular recurrent shallow body of water and affect the gravitational attraction between the sun and the Sun, Moon and the earth and maybe often referred to as tsunami but do not generate to the small tidal waves  
  • The wind-driven waves or the surface waves are those created by the formation of the surface water and them tens to blow away the occurs for the Oceana and are found across the open seas and globally across the coast. As compared to the tsunami that is tectonically produced these are due to the disturbance in the body of the water.
4 0
4 years ago
Read 2 more answers
The sand deposit connecting the shore to the island in the above photo is known as a: A. baymouth bar B. sand spit C. tombolo D.
aliina [53]

Answer: Option (C)

Explanation:

A tombolo is a depositional feature that is formed when the longshore current, moving parallel to the sea shore, carries the sand long with them and deposits along the shoreline. After this, subsequent backwash carries the sands along with it and deposits at a right angle to the sea shore. This deposited sands and other materials connects the shore to an island and this features are known as tombolo.

Thus, the correct answer is option (C).

7 0
3 years ago
An australian man thought the 37-pound rock he found was gold, but it was actually…
jasenka [17]

Answer: pyrite

Explanation:

5 0
3 years ago
Which of these is not a push factor for migration?
AlekseyPX
Increased employment opportunities.

Typically the reason people move isn't because they have access to more job positions.
4 0
3 years ago
Read 2 more answers
How does the level of wellbeing relate to a country's level of development?
erma4kov [3.2K]
If they live happy and healthy they build more and effieciently because of their bodies being capable to do more then when not being healthy

4 0
3 years ago
Other questions:
  • Explain the difference between a meteoroid, meteor, meteorite. Which one would you most likely see of the surface of Earth
    11·1 answer
  • The United States is the __________ largest country in the world.
    8·2 answers
  • How long does it take to get to Washington if you live in Los Angeles California
    5·1 answer
  • Who was in captian Pollard's whaling boat?​
    14·1 answer
  • Apakah yang dimaksud pengertian bumi?
    14·1 answer
  • Which statement explains what similar fossils found on distant continents suggest about Earth's history?
    7·2 answers
  • What imaginary line marks the southern boundary of the tropics
    8·1 answer
  • Activity 1 : Volcano: Advantage or Disadvantage? ​
    7·1 answer
  • Interest rates on credit cards
    10·1 answer
  • Which of the following transactions was not part of the triangular trade between Europe, Africa, and the Americas?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!