Q: Treadmills are available at most gyms, and they're a convenient way to get some cardio exercise in and burn calories. Many treadmills let you adjust the speed and incline that you want to work out with, so it's a good choice regardless of your fitness level.  You can burn around 125 calories per 1 mile (1.6 km) walking briskly on a treadmill if you weigh 150 pounds (68 kg).  Using a treadmill can be hard on the knees, so you may want to use a different cardio machine if you suffer from knee pain or have a knee injury. Working out on an elliptical is also a good calorie-burning cardio exercise, and like a treadmill, you can usually adjust your intensity level. Ellipticals are popular exercise machines, so you shouldn't have a hard time finding one at your gym. You can burn 170-320 calories in 30 minutes on an elliptical, depending on your weight and the level of intensity you're working out at. For example, if you weigh 200 pounds (91 kg), you could burn 286 calories by working out on an elliptical at a high intensity for 30 minutes. Pedaling on a stationary bike at moderate intensity for 30 minutes can help you burn 200-700 calories, depending on your weight. It's also a great choice if you have knee problems since most of your body weight is being supported by the machine.  For example, if you weigh 150 pounds (68 kg), you could burn 250 calories by exercising on a stationary bike with moderate intensity for 30 minutes. If you're new to exercising, you can start out pedaling on a light intensity setting and then gradually increase your intensity level as you improve. Rowing is a great, full-body cardio exercise that won't place a lot of stress on your joints. On a rowing machine, you can burn calories while working out your arms, legs, and core. Start out on a low-intensity setting and progress slowly so you don't hurt your back. Depending on your weight, you can burn around 400-700 calories by spending 1 hour on a rowing machine. For example, if you weigh 240 pounds (110 kg), you could burn 650 calories by working out on a rowing machine with moderate intensity for 1 hour.
A: Walk or run on a treadmill. Try using an elliptical machine. Exercise on a stationary bike. Work out on a rowing machine.

Article: If your keyboard is only mildly sticky, you might be able to clean it with a simple disinfectant wipe. Wipes including Sani-Cloth Plus, Cavi-Wipes, and Clorox Disinfecting Wipes are safe for most computer keyboards and will remove bacteria as well as sticky substances.  Make sure the wipes are not overly damp by squeezing out excess liquid before cleaning. Opt for a disinfectant wipe that contains up to 0.5 percent hydrogen peroxide. Take a lint-free cloth and dab it in isopropyl rubbing alcohol. Gently rub the cloth over the keys. Pay special attention to any keys that are particularly sticky. These keys made need more than one pass of the cleaning cloth. Never pour alcohol directly on to the keyboard or keys! Some areas of your keyboard will have more sticky buildup than others. These areas may need an extra scrubbing. High traffic keys like the space bar or enter key might require you to scrub a little more thoroughly than other keys. If you find that rubbing alcohol or a keyboard-friendly wipe aren’t removing tough debris, try a toothpick. Use the end of a toothpick to carefully dislodge debris and grim that is stuck to the keyboard. Once you have cleaned the sticky reside from your keyboard, you can polish the keys. Use a soft, dry lint-free cloth and gently swipe it over and around the keys. Your keyboard should now be clean, dry, and free of sticky substances!
Question: What is a summary of what this article is about?
Try a keyboard-friendly wipe. Clean the keys with rubbing alcohol. Pay special attention to heavily used areas. Use a toothpick to remove stubborn buildup. Polish the keyboard with a dry, lint free cloth.

Problem: Article: Tap the grey app with gears on it to do so. You'll likely find Settings on the Home Screen. It's at the top of the third main group of options near the top of the Settings page. It's in the middle of the page. This is the code you set when you turned on Restrictions—not necessarily the same as your iPhone's regular passcode. If you haven't yet turned on Restrictions, instead tap Enable Restrictions and then enter your preferred passcode twice. This area is about halfway down the page. It's near the top of the page. A blue checkmark will appear to this option's left, signifying that it is active. Do this in the "NEVER ALLOW" section (not the "ALWAYS ALLOW" section) near the bottom of the page. This should be the website you want to block; make sure you include all parts of the website's URL (e.g., "www.example.com" rather than "example.com"). It's a blue button in the bottom-right corner of the keyboard. This will block your selected website in Safari.
Summary: Open your iPhone's Settings . Scroll down and tap  General. Scroll down and tap Restrictions. Enter your Restrictions passcode. Scroll down to the "ALLOWED CONTENT" section and tap Websites. Tap Limit Adult Content. Tap Add a Website. Type in your website's URL. Tap Done.

INPUT ARTICLE: Article: If the file is in your Gmail inbox, open the email containing the file and do the following:  Tap the Add to Drive button for the attachment, usually in the middle of the preview icon. In the menu that pops up, select a folder in your Drive as the location for the PSD file. Select Add once you’re done. This has a white icon with a yellow, blue, and green triangle in it that can be accessed from the Google folder. Once in your Drive, select the folder with your saved PSD file from the main menu. Simply tap on the preview icon for it. Since Google Drive supports a variety of formats, the file should open without any trouble.

SUMMARY: Save the file you want to view to your Google Drive. Open the Google Drive app. Navigate to the file you want to view. Open the PSD file.

Q: Angelfish may not do well with other fish. They tend to be territorial, and may attack and even eat smaller fish. If you introduce other fish, stick to other angelfish or fish of a similar size. If an angelfish becomes diseased, you will need to talk to a vet or a pet store worker about treating the illness. This is especially important if you have other fish in your tank. One sick fish could infect the tank.  Excessive slime and clamped fins can be a sign of a very serious disease called angelfish virus. If you suspect your fish has the virus, it may need to be put to sleep as there is no cure. White chalky feces, a lack of appetite, and weight loss can also indicate disease. There is also a common disease called ich that causes white spotting due to parasites. It can be treated easily with medication, so keep ich medication on hand when you have angelfish. If an angelfish is showing signs of disease, remove it immediately and place it in a quarantine tank. Seek the care of a veterinarian to discuss treatment options or ask at a local pet store. Do not put the fish back into the tank until the signs of disease have passed, as you do not want disease to spread.
A:
Use caution when placing angelfish with other fish. Watch for signs of disease. Quarantine sick angelfish.