Answer:
b
Explanation:
The answer is B becuase "where do people buy tools is not a scientific question, and neither is C.
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The main dangers worldwide are population growth and resource consumption, climate change and global warming, habitat conversion and urbanisation, invasive alien species, over-exploitation of natural resources and environmental degradation.
The attractions between the solute and solvent molecules must be greater than the attractions keeping the solute together and the attractions keeping the solvent together. This needs to happen for a solute to dissolve in a particular solvent
.
Answer: Option A
<u>Explanation:</u>
Solute means the substances which get dissolved by another one, Ex: salt. On the other hand, Solvent refers the substance which dissolves. Ex: Water. To get dissolved in solvent, the particles present in solute move away.
It is possible only when the attractive force between solute and solvent are greater than binding force of solute and solvent. Separation and mixing up with solvent particles, in general, called as solvatation.
Answer:
The nucleus
Explanation:
It is the control center of the cell. It contains DNA, which tells the cell what proteins are to be made.
Answer:
The answer is 10 C.
Explanation:
Because your body can produce 10 of the 20 amino acids.
