How do I eliminate passive voice - why do I even have to? (<-- see what I did there, passive voice and ended on a preposition! no nos... )
The strongest writers avoid using passive voice because, while past-tense accurately represents events which already occurred, passive voice indicates a lack of vocabulary or a struggle to use a variety of sentence structures. To curb the use of words including 'has, have, been', etc. lists of substitute words and practice with varying sentence structures help boost writing samples from average to well articulated. Overtime, substituting passive voice will involve very little thought or effort - a.k.a., your writing improves on its own!
On the basic graph of supply and demand, how can you remember which line is supply and which line is demand?
Well there are two ways: a logical thought process and an alphabetical cheat. The logical thought process: If you mentally think about supply and demand, there is Price on the vertical axis (easy to remember because the stick on the letter 'p' goes the same direction as the axis it is on) and quantity on the horizontal axis. Then there is an X formed by supply in demand (in its simplest form). So I am a Cheese-it addict and I buy a box every three days so long as the price stays at its current (let's say) $2 value. Because I am a consumer not a supplier, I'm not the company making Cheese-its, the only thing I effect is the demand curve. The first leg of the X could be demand, but I'm not sure. Let's think about the factors that would prevent me from buying my normal number of Cheese-Its. If the price went down to $1, I would go to the store more often, maybe once a day, for my box of goodies. But if the price rose to $3, I might be unable to afford my usual habit and will pick up a box every 5 days instead. Okay, so a RISE in price means a REDUCTION in quantity DEMANDED. Hmmmm. So if my vertical access is price and the first leg of the 'X' indicates that as price goes down, quantity demanded increases... Well that first line must be demand! And thus the second line must be supply. The cheat: Alphabetically, what comes first D (demand) or S (supply)? D? Well that's great because demand comes before supply if you drag your finger from left to right along the graph.
How can education act as a solution to curb the boom in population growth in developing countries?
Education, more specifically the universal education of women, brings about globalization to communities which may still exhibit qualities of traditionalism. Globalization entails many things including introducing developing countries to the Western ideas of the role of women in society. Although losing traditional values is controversial, it is undeniable that encouraging female education empowers women to play a larger role in society. When women start to work, support, and care for their families, family structures reduce in size - due to awareness on sexual/birth rights of women and a reduction in free time. Thus, there is a perfectly inverse relationship between increased education and a decrease in the number of children born per woman.