Prevailing winds and pressure belts are major climate controls. A belt of low pressure known as the intertropical convergence zone (ITCZ) lies along the Equator. On either side of the equatorial low, between 25Â° and 30Â° latitude in each hemisphere, is a belt of high-pressure centers over the oceans. From the equatorial side of these subtropical highssuch as the Hawaiian high.
The normal breathing rate for a 4 month old baby is between 30 and 60 breaths per minute.
For many children, by the time they are 6 or 7 weeks old, they will be sleeping through the night. For other babies, they may not sleep through the night until they are 3 or 4 months old. Here is how their sleep needs generally progress: â birth to 6 or 7 weeks. Newborns sleep between 16 and 20 hours a day.â 1 month to 3 months. Babies at this stage will need to sleep around 8 hours at night, and another 8 hours during the day, for a total of around 16 hours. â 3 months to 6 months. During this stage, nighttime sleep increases and daytime sleep decreases.or other babies, they may not sleep through the night until they are 3 or 4 months old. Here is how their sleep needs generally progress: â birth to 6 or 7 weeks. Newborns sleep between 16 and 20 hours a day.