Because arteries have to have thick walls for use of protection. Its when you get to veins where the walls get thinner. And the use of the heart is to pump blood to all of the cells and organs in the body so it would be to transport blood away from the heart.

i.e. 

Arteries = Away from the Heart 
Veins = Back to the Heart.

A microwave is the fastest communication channel whereas Optical fiber is a way of transferring data not a way of communication.

For neutral atoms, the periodic trends in atomic size can be described like this

Atomic size decreases when going from left to right across a period,
Atomic size increases when going from top to bottom down a group.

Let's use these trends to try and figure out which atom would have the largest radius.

If you look at elements that are located in the same group, potassium will have a larger atomic radius when compared with sodium. Likewise, bromine will have a larger atomic radius when compared with chlorine.

Now focus on potassium and bromine. Since potassium is located at the start of period 3, and bromine at the end of the same period, potassium will have a larger atomic radius than bromine, and thus the largest atomic radius of the four given atoms.

A seemingly simple question that is often difficult to answer, it can result in a great interview going disastrously wrong.

Here "What interests you about the position offered?" is a problematic question for anyone, even the most prepared interview candidate. It is one of those questions that might decide between selected individuals who have the same qualifications and experience.

When asked "what about this job interests you", the interviewer wants to know why you decided to apply specifically for this job and why do you consider this position fitting you and your career plans.

The best bet is to take the most important element of the said job and talk about it.

For example if the job requires effective team work capabilities, you may construct your answer in this way:

Question: What is the 'thing' that interests you about this job?

Answer: One of the things that are of my best interests in this job is the opportunity to work in a team environment. I always wanted to work with hard-working, professional, experienced people. I love contributing the team effort, bringing out the best in myself and in my teammates for fulfilling our work goals and reaching top results.

I trust that I can perform great by applying sound principles of teamwork as I did in my previous jobs. I seek timely and consistent feedback designed to improve not only my performance as well but the team’s performance as well. I consult with people, try my best and treat everyone positively/equally.

Tips to follow while answering this question ::

1. Be Specific

2. Be Truthful

3. Be Real

Given fraction is 5 (2/7) - 3 (1/14) - 2 (1/14) - 1 (1/7) = ? + 3 (1/17) 

It can be written as 

(5 - 3 - 2 - 1) + (2/7 - 1/14 - 1/14 - 1/7) = ? +  3 (1/17) 

-1 + 0 - 3 (1/17) = ?

=> ? = -4 (1/17)

The job cost sheets constitute the subsidiary ledger for the Work in Process Inventory Account.

A job cost sheet is a form used to record the costs chargeable to a specific job and to determine the total and unit costs of the completed job. Companies keep a separate job cost sheet for each job.