The main thrust of the river flow is known to hydrologists as the thalweg; it does not move in a straight and forward line but, mingling with the inner flow and the variegated flow of the surface and bottom waters, takes the form of a spiral or helix..
1 Some booster seats can be used for children up to 60 inches and 120 pounds. 2  Many state laws prefer that children 12 years and younger sit in the back seat if available. 3  Some states, as is the case in Michigan, forbid placing a child under the age of 4 years in a front seat if a rear seat is available. All children who are smaller than 150 cm (4 ft 11 in) and younger than 14 years old must use a booster or car seat appropriate to their weight. 2  A child must be either 14 years old or 4'11 to ride without a booster seat.
A booster seat is used to lift up a child and properly position the vehicle's lap/shoulder belts on children who are too small to fit the adult seat belt. Boosters are rated for use from 30-40 lbs to 80-100 lbs. Booster seats do not have a harness. FITS YOUR CHILD. Many booster seats have a minimum weight of 30-33 lbs. However, a booster seat should not be the next purchase when the child outgrows a convertible seat. A child is safest if they remain in a harnessed seat until they reach at least 40 lbs.