The reason the three way classification of Igneous, Sedimentary and Metamorphic is used is because the processes involved in forming the three rock types usually results in a characteristic relationship between the mineral grains that is diagnostic. Sedimentary rocks form from sediments deposited from water or air.he reason the three way classification of Igneous, Sedimentary and Metamorphic is used is because the processes involved in forming the three rock types usually results in a characteristic relationship between the mineral grains that is diagnostic. Sedimentary rocks form from sediments deposited from water or air.
1 To prevent blisters caused by rubbing (friction blisters): 2  Avoid wearing shoes that are too tight or that rub your feet.3  Roomy footwear has a wide toe box with more room for your toes and the ball of your foot. 4  You should be able to wiggle your toes in your shoes.ome of the most common types of blisters can be prevented. 1  To prevent blisters caused by rubbing (friction blisters): 2  Avoid wearing shoes that are too tight or that rub your feet.
Step 3: Give your feet a lift. If you're prone to heel blisters, put heel lifts in your shoes. Wear them in both shoes, even if just one heel is sensitive. Insoles also can reduce blisters on heels, as well as on other parts of the foot. Step 4: Use antiperspirant. Use antiperspirant -- on your feet.Preventing foot sweat reduces the friction that can cause blisters. Apply daily to clean, dry feet, making sure you cover the entire foot, including between the toes.tep 4: Use antiperspirant. Use antiperspirant -- on your feet. Preventing foot sweat reduces the friction that can cause blisters. Apply daily to clean, dry feet, making sure you cover the entire foot, including between the toes.