Answer:
The troposphere is denser than all its overlying atmospheric layers because a larger atmospheric weight sits on top of the troposphere and causes it to be most severely compressed. Fifty percent of the total mass of the atmosphere is located in the lower 18,000 ft of the troposphere.
Explanation:
<span>So far, astronomers have found more than 500 solar systemsand are discovering new ones every year. Given how many they have found in our own neighborhood of the Milky Way galaxy, scientists estimate that there may be tens of billions of solar systems in our galaxy, perhaps even as many as 100 billion.</span>
Answer:
the total value of goods produced and services provided in a country during one year.
Explanation:
Geographic information systems will increasingly find applications in public health. The public health is focused on the health of populations and on prevention. G<span>eographic information and geographic information systems (GIS) can contribute to better management, operation and organization in the public health.</span>
