Article: You cannot simply add saltwater to a tank and expect a clam to survive, as it needs a variety of microorganisms to be well established before it can feed. Clams are best in well-established aquariums that have had several weeks or months to cycle.  Saltwater clams go by the names T. (Tridacna) maxima, T. crocea, T. squamosa and T. derasa. Tridacna derasa clams are the best beginner options, as they are hearty and can handle a variety of changing conditions. Once you've successfully put several fish in the tank and let them spend several weeks living healthily, you're likely ready for clams. While it may look good, never place a clam up on a rock or structure. If it becomes detached and falls it can cause major damage and potentially kill the clam. Solid rocky bottoms are fine, as saltwater clams have a foot that they use to attach to the bottom of the tank.  When you put the clam in the tank, turn it upside-down briefly to remove any air bubbles from inside the clam. Make sure that the clams aren't wedged into anything the prevents them from opening up. Saltwater clams are photosynthetic, and feed off the products off other photosynthetic creatures, like plants, in your tank. They have symbiotic algae in their mantles (top section) that create energy that the clams then harvest. As such, they love having bright, constant lights to feed under. Metal Halides are your best option, though high level LEDs or Fluorescents may suffice.  Make sure the clams face upwards, and are not blocked from their light source. Maxima clams, in particular, need 250 - 400 watt Metal Halide lighting or equivalent intensity to survive. Clams do not like rapid or fast-moving water, as it disrupts their ability to filter food out of the water effectively. Indirect, slow moving currents are the best way to keep your clams healthy and happy. Keep your clams out of direct currents and away from pumps or fans. Clams survive well in near-natural seawater conditions, which is where you likely keep a saltwater tank already. If you're not already, however, keep the phosphate and nitrate levels at an absolute minimum, potential near zero. A clam, when touched or exposed to a shadow, should close up quickly. If it does not, it likely needs more food and/or light, or your tank could be having chemical issues. If a clam does not close up at all, it may be dead, and should be quickly removed. Dead clams release a burst of ammonia, which can endanger the rest of the life in your tank.
Question: What is a summary of what this article is about?
Do not place saltwater clams in new or immature aquariums. Place clams on the bottom of the tank, where they can establish themselves. Ensure that your clams have adequate, bright lights. Keep the water movement low and calm. Keep phosphate and nitrate levels low. Check how quickly a clam closes up to monitor its health.

Problem: Article: You can purchase telephone cards that allow you to place international calls at a flat rate online or from stores. However, you need to be careful that you are getting a card that can be used from France to the US. To ensure this, you may want to purchase your card while you are in France. Many international calling cards sold in the US can only be used for international calls starting in the US. Calling card terms and fees vary widely. In general they have a flat fee for each call and then an additional fee for each minute that the call lasts. The amount of these fees varies, so check the fine print. Each calling card will have a basic number that will connect you to the calling card company's network. Once you have dialed this number you should hear a recording that prompts you to continue with the process. This access number is typically located on the back of the calling card. This number is unique to your card. The amount of numbers you will have in your pin varies. This number allows the calling card company to charge your specific account. On many calling cards this number will need to be exposed by rubbing over an area on the back of the card with a coin. When calling from France to the United States, this will include the country code, area code, and local phone number. Once the number has been accepted, the phone should start ringing.
Summary: Find a calling card that can be used in France. Review the terms and fees of the calling card. Call the access number on the card. Enter your pin number when asked for it. Dial your destination number.

INPUT ARTICLE: Article: Caffeine increases the number of calories you burn by a small amount, but it may also make you feel like moving more. Drinking a caffeinated beverage with a meal like black tea, green tea, or coffee may increase your metabolic rate by as much as 10%.   Green tea seems to have even more calorie burning properties and it may even block your absorption of carbohydrates.  Keep in mind that drinking coffee or tea plain will take some getting used to, but purchasing high-quality beans or tea leaves will certainly help. Drinking water helps your body burn more calories. One study found that drinking eight cups of water per day helps your body burn about 100 extra calories per day. Consider getting yourself a reusable water bottle to help keep track of how much water you are drinking every day. Your body needs adequate rest each night in order to function properly and burn calories. In addition, being sleep deprived makes it harder for you to do other things that help your body burn calories, like eating well and exercising. Make sure that you sleep for seven to nine hours every night to keep your body burning calories and functioning at its best.

SUMMARY: Reach for the caffeine, but pass on the sugar and cream. Drink eight glasses of water per day. Sleep for seven to nine hours per night.

Makeup should always be applied to a clean canvas.  Wash your face using your normal cleanser and pat dry.  If you have dry skin, apply a moisturizer and wait a few minutes before applying foundation to give the moisturizer a chance to work. If you are in a hurry or have applied too much moisturizer, blot your face with a tissue to remove excess moisturizer before applying foundation.
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One-sentence summary --
Cleanse and moisturize your face.