Answer: They divide it on eons.
Explanation:
They can see it from geologic strata and the fossil record. Major volcanic events altering the Earth's environment and causing extinctions may have occurred 10 times in the past 3 billion years. Different eons have different animal and plant life. (eg. trilobites)
Answer:
All the water that is on earth today is the water that has been on the planet. Freshwater is a million years old. The same water is flowing in a continuous loop in the form of falling as rain and snow from the clouds to the earth’s surface. Running in rivers and ponds. This is due to the water cycle. The cycle where the water evaporates in the atmosphere and is from the atmosphere and then cloud loses the water as rain or snow.
William Smith and Georges Cuvier
The earth orbits the sun once per year
The APGAR scoring is done right after the baby's birth to evaluate a newborn's condition and if needed for immediate care. If the baby is weak, inactive and grimaces. The medical team should be concerned on checking and managing the baby's pulse rate which is the measurement of heart beats per minute. For newborns, normal pulse rate ranges from 120-160 beats per minute. Another vital sign to check on the baby is pain. It is considered the fifth vital sign which is regarded as a symptom of an underlying condition and may be associated with possible or actual tissue damage.
