Evaluate this topic idea:
“teachers gave 18.5% more homework in 2007 than in 2005.”

a.) the topic is satisfactory

c.) the topic is too narrow

b.) the topic is too broad

d.) this is a thesis statement

The topic is too narrow. Teachers gave 18.5% more homework in 2007 than in 2005. This means that if suppose that in 2005 teachers gave 1% homework  and if we compare with 2007 then they gave 18.5% work. There is an increment of the homework which has been given by teachers to the students. This topic is not broad because the reason is that we just have to understand about the increment of the homework percentage. This calculation generally differs from school to school.

c.) The topic is too narrow

the gas pressure p, gas volume v, and gas temperature t are given in the formula:   pv=nrt,

r is the gas constant, and n is the number of gas moles.

if the container is cooled and remains under atmospheric pressure, where r is a constant that does not change, the volume of the container remains the same, the conclusion is drawn that, with all other values ​​unchanged, the number of gas moles n, is decreases.

the right answer is a.

1. c. zone of saturation, water table, zone of aeration

2. c. condensation

3. b.   conservation and condensation

4. c. groundwater dips below the water table in an artesian well

5. d. oceans

6. c. geyser

7. d. groundwater

8. b. 70%

9. d. transpiration

10. c.   desalination