Many factors have contributed to increase in life expectancy. Examples such as medical advancements in modern medicine, less wars being fought, improvement in sanitation, eating a healthy diet, a overall healthier lifestyle (for example, people don’t smoke cigarettes as much as the olden days) and easier access to education.
An ocean current is a continuous, directed movement of sea water generated by a number of forces acting upon the water, including wind, the Coriolis effect, breaking waves, cabbeling, and temperature and salinity differences.
Answer:
<h3>It happens when a population ages an increase in the population's mean and median ages.</h3>
Hello there!
Your question: What are the two main gases found in earth's atmosphere?
Your answer: The two main gases that are found in the earth's atmosphere are:
1) Oxygen
2) Nitrogen.
Hope this helps! :3
