In one sentence, describe what the following article is about: Figure out the boundaries of the region for which you want to know the population density. Think about why you want this number. Perhaps you want to find the population density of your country, your city, or your neighborhood. You will need to find the total area of this place: usually in feet, miles, meters, or kilometers. Odds are that someone else has already measured and surveyed this area. Look for census data, read an encyclopedia, or run a web search. Find out whether the area has any set boundaries. If not, you'll need to define them yourself. A neighborhood, for instance, may not be listed in the census, so you'll need to draw the borders yourself. Short of counting the population yourself, you'll need to find an up-to-date record of how many people live in this area. Start by running a web search for the population of the place say, the city of Houston, Texas. Look for the most recent census data for a relatively accurate number. If you are looking for the population of a country, the CIA World Factbook is a good source. If you are calculating the population density for an area that has not already been recorded, you may need to count the population yourself. This might include a colloquially-defined urban neighborhood, for instance, or a population of kangaroos in a section of the Australian Outback. Try to get as accurate a number as possible. If you plan to compare one area against another, make sure that all of your numbers use a common unit of measurement. For instance, if one county is listed in square miles and another is listed in square km, you will need to convert the area of both countries into either square miles or square km. For easy Imperial-to-metric conversions, visit http://www.metric-conversions.org.
Summary: Define the area. Determine the population. Balance your data.

In one sentence, describe what the following article is about: Your footgear can either aid your quest for becoming stealthy or be a dead giveaway of your presence, every time. You need to choose the proper footgear for the environment in when you'll be moving. Practice walking and running in your chosen footgear often, so you'll get used to the tiny noises it makes. If you're in a house, it's best to wear socks, as they are soft, and they are comfortably fitting. Going barefoot is also a good option, unless the floors are wood. Depending on your natural tendencies, sweat and excess moisture may cause you to slightly stick to the floor. This doesn't hinder your pace, however if it is dead quiet, like the middle of the night, and a target is near, the tiny 'schluk' noises your foot may make can be very detrimental. Wearing socks is nearly always your best bet indoors. Carry your shoes with you and put them on when you're clear of the house. If you're in a place with lots of grass or leaves, use socks or go with bare feet, carrying your shoes, however be wary about going barefoot in an area containing many rocks, glass/bottles, or patches of spiny plants. The last thing you want is a bleeding or painful foot while trying to sneak away. You could also wear toe shoes or water shoes, but be careful: if these types of shoes get soaked, they can emit a "squish" sound as your foot hits the ground. To cross a rocky place (pebbles, gravel, etc.), you must use a pair of thick socks or bare feet. Soft socks and bare feet cushion the impact, but shoes will push the stones down and out, making the sound of rocks moving. For walking in a mixed environment, like a suburban street with a road, gravel, and grass, wear running shoes with soft, flexible soles. Be careful not to walk flat-footed with these shoes. The clothing you choose should match the colors of the terrain you'll be crossing, and the time of day should also be taken into account. Wear darker colors at night, and earth tones during the day. Choose fabrics that are comfortable and don't make swishy sounds. Cotton is always a good choice, and soft polyester fabrics also work well. If you're walking around at night in a city, tight black clothing will do. If you're in a natural area (a field or forest) wear loose clothing to distort and break up the human figure. Wear dark browns and greens instead of black, because black stands out. Don't wear anything that will reflect light. Remove shiny jewelry, and try wearing contacts instead of eyeglasses. Try not to wear heavy gear. All it will do is fatigue you and make it harder to move. This will also make more noise. Night vision or infrared goggles are useful for helping you see in the dark. Binoculars may also be useful if you need to see objects that are far away.
Summary: Choose stealthy footgear. Wear clothing that camouflages you. Consider investing in some eye gear.

In one sentence, describe what the following article is about: One of the most important things you can do to keep your feet from sweating is to wash them thoroughly every day. This will help to minimize any bacteria or fungi that might be living in the damp environment of your socks. Use antibacterial soap each time you wash your feet. Even if you don't shower every day, you should wash your feet with soap and warm water on a daily basis. Bacteria and fungi thrive in warm, damp settings, so inside your socks and around your feet are perfect places for them to grow. Be sure to dry your feet completely before putting shoes or socks on. Any time your feet get wet, they need to be thoroughly dried before being confined to shoes and/or socks again. This will also help minimize the potential for bacteria growth. You may even want to use a hairdryer on your feet to make sure they are super dry. Antiperspirant deodorant can be applied to other parts of the body too, not just to underarms. If your feet are sweating a lot, try spraying some deodorant on the soles of your feet before you put your socks on. Make sure you use the antiperspirant type of deodorant for the best results. Look for the active ingredients aluminum zirconium (trichlorohydrex) or aluminum chloride (hexahydrate). You can start by applying the same kind of deodorant you use on your underarms to your feet. But if this seems to have minimal effect, you may need to ask your doctor about prescription strength deodorant. Purchase a spray antiperspirant deodorant for your feet.
Summary:
Wash your feet every day. Let your feet dry. Apply deodorant on your feet.