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.
Under Pennsylvania's primary child passenger safety law, children under the age of 4 must be properly restrained in an approved child safety seat anywhere in the vehicle. Children under 2 must be secured in a rear-facing car seat until the child outgrows the maximum weight and height limits designated by the car seat manufacturer. Children from age 4 up to age 8 must be restrained in an appropriate booster seat. Children from age 8 up to age 18 must be in a seat belt. Car Seat Recommendations for Children. Select a car seat based on your child's age and size, and choose a seat that fits in your vehicle and use it every time.