Ecological succession. Ecological succession, the process by which the structure of a biological community evolves over time. Two different types of successionâprimary and secondaryâhave been distinguished. Primary succession occurs in essentially lifeless areasâregions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier.
According to Georgia law: 1  ALL children under the age of 8 whose height is less than 57 inches must ride in the backseat of a car.  Children under the age of 8 are required to be in either a car seat or a booster seat suitable for their age and height.
Children should remain in a harnessed car seat until reaching the weight or height limit of the seat. Most car seats have forward-facing weight limits of 40-65 pounds. 3. Booster Seats. Once a child reaches 4 years of age and weighs at least 40 pounds, she can move to a booster seat. A child is required by law to use the booster seat until she is 8 years old or 4â9â tall. Both backless and high back booster seats are available. Check the manufacturerâs instructions to see which is best for your child.