<h2>
Answer:</h2>
<em><u>(B). </u></em>
<h2>
Step-by-step explanation:</h2>
In the question,
Let the total number of geese be = 100x
Number of Male geese = 30% = 30x
Number of Female Geese = 70x
Let us say 'kx' geese migrated from these geese.
Number of migrated Male geese = 20% of kx = kx/5
Number of migrated Female geese = 4kx/5
So,
<u>Migration rate of Male geese</u> is given by,

<u>Migration rate of Female geese</u> is given by,

So,
The ratio of Migration rate of Male geese to that of Female geese is given by,
![\frac{\left[\frac{(\frac{kx}{5})}{30x}\right]}{\left[\frac{(\frac{4kx}{5})}{70x}\right]}=\frac{350}{4\times 150}=\frac{7}{12}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Cleft%5B%5Cfrac%7B%28%5Cfrac%7Bkx%7D%7B5%7D%29%7D%7B30x%7D%5Cright%5D%7D%7B%5Cleft%5B%5Cfrac%7B%28%5Cfrac%7B4kx%7D%7B5%7D%29%7D%7B70x%7D%5Cright%5D%7D%3D%5Cfrac%7B350%7D%7B4%5Ctimes%20150%7D%3D%5Cfrac%7B7%7D%7B12%7D)
Therefore, the<em><u> ratio of the rate of migration of Male geese to that of Female geese is,</u></em>

<em><u>Hence, the correct option is (B).</u></em>
<em><u></u></em>
Answer:
I think it's 4.89897948557
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
Here you need not completely solve 7992 squared. You can just take the last digit which in this case is 2 and solve for the square of that digit. 2 x 2 = 4. Now if it was a bigger digit which would result in a two digit number when squared you would take the last digit of that number. But, we don't need to do that here since 2 squared is 4.
Answer:
I think it's A
Step-by-step explanation:
Answer:
The molecules become more active and it expands.
Step-by-step explanation: