Spectral lines are of particular importance in astronomy because each different element has a characteristic line spectrum.
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Answer:
<u>Causes</u>
Natural fires are generally started by lightning, with a very small percentage started by spontaneous combustion of dry fuel such as sawdust and leaves. On the other hand, human-caused fires can be due to any number of reasons. Some classifications include smoking, recreation, equipment, and miscellaneous.
<u>Effects</u>
Forest fires can be deadly, destroying homes, wildlife habitat and timber, and polluting the air with emissions harmful to human health. Fire also releases carbon dioxide—a key greenhouse gas—into the atmosphere. Fire's effect on the landscape may be long-lasting.
The offspring can inherit something called a lethal or a semi-lethal gene, if so it does, the offspring wouldn't survive.
Answers:
1. Diseases reemerge because of a breakdown in public health measures for diseases that were once under control.
2. I don't know
3. I don't know
4. U.S. health care spending in 2016 totaled 17.2 percent of GDP, compared to just 8.9 percent for the OECD median.
5. It spent 17.8 percent of its gross domestic product (GDP) on health care, while the average spending level among all high-income countries was 11.5 percent of GDP.
Answer:
It helps your navigational skills.
Explanation:
If you go to the middle of nowhere and you only have a map and a compass, then Cartography (the study of maps) will be your only way out because without geography, maps wouldn't exist.