question: Complete the next sentence:

How to treat weak tooth enamel
Identify your symptoms.
The loss of enamel can be a symptom or cause of many different mouth diseases. It might be related to gum disease, enamel hypoplasia, fluorosis, cavities, or cracked teeth.

answer: Before you visit your dentist, you should make a list of all of your mouth related problems so that they can more accurately diagnose your problem. You might note : Sensitivity to hot or cold foods.

question: Complete the next sentence:

How to unzip a file
Double-click the. Zip file.
On an xp or newer systems, your windows machine has a built-in extractor program. Double-clicking the zipped (. Zip) file will open the built-in system.

answer: Alternatively you can right click on the zipped file and select " ". This will also open the built-in extractor program.

question: Complete the next sentence:

How to prune conifers
Prune conifers in late winter or early spring.
In general, conifers should be pruned in late winter or early spring to encourage lush, healthy new branches and foliage in the spring. There is also less risk of fungal infections at this time of the year because the bark is more easily damaged while the trees are growing.

answer:
Choose sharp, correctly-sized tools. The tools used for pruning conifers should always be sharp, as this is safer and more effective.