The correct answer is sources of meaning. This concept serves as a guidance or confrontation of questions that already exist by means of having to define the real meaning behind it or trying to emphasize what's more important or valuable to an individual.
32 different combinations of three cars can the Carsons select if all the cars are to be different colors.
B. 32
<u>Explanation:</u>
As it is given there are four available colours of the car. That means we have 4 cars. 
. Now choose the first car. The no.of way of choosing the first car is equalled to 8 and imagine the first car Colour is black. Now we have a black car so we have to choose from 6 options apart from black.
Now no.of way of choosing the 2 car = 6 and imagine it is blue. Now we have to choose two colour car, so now we have 4 options to choose from. The no.of choosing the car = 4. Now let's calculate the total arrangement - 
. It is the total calculation for three cars.
But we have to know the selection so three cars can also be arranged in 6 ways. So the number of different combinations of three cars can be calculated as 192÷6= 32. This is how the selection is being done.
<u>ANSWER:</u>
The correct options are: B- "Full employment is a macroeconomic goal" and D- "Inflation is the rise in the prices of goods and services".
<u>EXPLANATION</u>:
- Macroeconomics studies issues like employment, inflation, poverty, unemployment etc. and so the goals of macroeconomics deal with all such issues.
- "Full employment" refers to a 'situation' wherein every individual who has the capability to work and earn is provided with a job. Inflation is the "rise of prices" of services and goods .
- Inflation makes it impossible for most people to buy even the necessary goods and services. Inflation also affects the demand of "goods and services".
<span>The correct answer is option B Silent Spring. </span>The <span>book that brought the public's attention to damage caused by pollution in the early 1960 is the Silent Spring. It</span> was published in the early 1960s. The book explained the environmental damage caused by widespread use of pesticides. This book introduced the public to the idea that nature is vulnerable to human activity.
<span>Experiments in which all variables are identical except for one are called controlled experiments. This where an observer tests his hypothesis by looking on changes that were brought about by one variable. The results are always dependent on one adjusted variable.</span>
