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DochEvi [55]
3 years ago
7

A scientist observes how a particular South American bird cares for its young. Why is a field study an appropriate type of scien

tific investigation? A. It allows the scientist to simulate the natural environment of the bird in the laboratory. B. It allows the scientist to conduct a controlled experiment. C. It allows the scientist to watch the animals without disturbing them or their environment. D. It allows the scientist to change how the bird cares for its young.
Whoever answers get Brainliest Answer
Chemistry
2 answers:
AysviL [449]3 years ago
8 0
Its appropriate because it allows the scientist to view and watch how the bird treats and cares for its younglings without interrupting so the scientist can be writing down marks, traits, and investigations to help with his study.

Answer: C)
ioda3 years ago
6 0
The best answer would be A. Hope i helped 
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Solid iodine crystals at the bottom of a closed test tube sublime to form iodine vapor. The vapor eventually fills the entire te
Vika [28.1K]

Answer:

Diffusion occurs in solid and liquid through the constant and random motion of the smaller particles called molecules of either solid, liquid or gaseous in permeable medium as witnessed in the experiment.

Explanation:

The kinectic molecular theory of matter states that the smaller particles of matters called molecules are in constant, but random motion and the degree of movement of the molecules depends on the state or phase such matter exist, which is a derivative of the total kinetic energy possessed by the molecules. This average kinetic energy of the molecules as iodine for example is proportional to the temperature of the matter.

Diffusion should be remembered as the movement of molecules of matters from a highly concentrated region otherwise called hypertonic region to a less concentrated region called hypotonic region through a permeable medium until there is an equilibrium in the system. Since diffusion is expected to involve the movement of molecules, and any matter that can exhibit diffusion is said to have moving molecules, therefore, the kinetic molecular theory of matter is proven to be accurate with the observed movement of iodine molecules in the test tube. This shows that even the molecules of solid matters are in constant random motion, this is made more convincing when these molecules migrate without the addition of external energy source like heat, which then help to understand that the natural iodine molecules are in constant random motion, as they are changed to gaseous state without passing through liquid state, a phenomenon called sublimation.

3 0
3 years ago
How does the solubility of a gas change with decreasing temperature? A. It increases. B. It decreases. C. It is uniform. D. Temp
vitfil [10]

A it increases is the correct answer.

Good luck and I hope this helps.!


3 0
3 years ago
For a reaction system at equlibrium, le chateliers principle can be used to predict the
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According to Le Chatelier's principle, adding additional reactant to a system will shift the equilibrium to the right, towards the side of the products. ... By Le Chatelier's principle, we can predict that the amount of methanol will increase, thereby decreasing the total change in CO.

6 0
4 years ago
A rigid cylinder of gas shows a pressure of 600 torr at 215 K. It is moved to a new storage site where the pressure is now 750 t
Ronch [10]
PV=nRT

Here
P1/T1= P2 / T2
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5 0
3 years ago
How do you make these equations balanced?
Sedaia [141]

Explanation:

both iron and sulphur in FeS2 undergo a change in oxidation state.

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Hence, balanced

3 0
3 years ago
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