Answer:
Through their adaptations from their habitat; environment
Explanation:
Charles Darwin explains evolution and their genetic material evolves during the process. For example, fruit birds have narrow bills whilst seed-eating birds have big bills. The foods they eat forced their DNA to adapt with the system in order to survive.
Answer:
The Properties of plastics that cause a problem when the container is empty is that it is made up of many chemicals which use to make the plastic hard . they are harmful for human health. specially (BPA)
<u>Al2(SO4)3</u>
<u>Option: E</u>
<u>Explanation:</u>
The freezing point lowering of a solution depends on the number of ions and molecules that dissolve in water solution. So when there are more number of molecules, the freezing point will also be reduced more.
Now let us look at Al2(SO4)3. Here, it produces a total of 5 molecules. i.e (2 Al(3+) and 3 SO4(2-)). If we take the other choices from first:
MgBr2 - It produces a total of 3 molecules. (1 Mg(2+) and 2 Br(-))
HOCH2CH3 - This produces 1 molecule as it remains the same as HOCH2CH3 because it is covalent and does not dissociate in water.
NaNO3 - This produces 2 molecules. (1 Na(1+) and 1 NO3(-))
C6H12O6 - This also produces 1 molecule same as HOCH2CH3 because it is also covalent and does not dissociate in water.
Na3PO4 - This produces a total of 4 molecules. (3 Na(+) and 1 PO4(3-))
Thus, from the above analysis, it shows that Al2(SO4)3 has more molecules compared to others. When there are more molecules, the freezing point is also lower.
Answer:
Astronomy is a subject area which contain a question that can be answered by Science.
Explanation:
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