Answer:
Central and South American forests.
Explanation: https://brainly.in/question/7540305
Grass is biotic- living.
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Answer:
Explanation:
10.11 g sample of 
contains 22.34% 
by mass
According to the law of constant composition the if one sample of has 22.34% of by mass then any other sample of will have the same percentage of the amount of .
For a sample of 7.09 g we have
The mass of sodium in the required sample is .
<h2>Answer:</h2>
Scientific questions are question which are solved involving experiments, observations, or surveys.
Like, Is cancer caused by uncontrolled cell division.
<h3>Explanation:</h3>
Scientific questions are always testable questions. They can be solved by using scientific techniques like PCR, titration etc.
Here the given question in the example can be tested, by making the observations of the cell division of the cancer patients. Then by inducing uncontrolled cell division into normal cells to look for the effect of cell division on cancer.
The questions like, "is sadness can be controlled by talking?" is not a scientific question.
Answer:
The answer is C (law of superposition)
Explanation:
