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.
2. Use a cotton ball to apply rubbing alcohol on the blister and on a clean needle. 3. Gently poke your blister with the needle and apply light pressure to push out the fluid. 4. Thoroughly clean the blister and surrounding area with soap and water and pat the area dry with gauze or a clean towel.5.ow to Prevent Blisters. Wear clothes and shoes that fit properly. Blisters are often caused by ill-fitting shoes or clothing. Select items that have a snug fit, but arenât too tight. You should also look for breathable fabrics and items with few seams and flat stitching.