Two major problems associated with petroleum products are the environmental hazards associated with its extraction from the earth and also the environmental impact of its burning which emits greenhouse gases into the atmosphere which has been shown to cause global warming and climate change.
It is true that the famous Mount St. Helens is located in the United States, in Skamania County, Washington, to be more precise.
This is what I found. Raindrops form when microscopic water droplets bump into each other in clouds. the more turbulent the clouds the bigger the raindrops get
Answer:
2000m
Explanation:
Given parameters:
Rate of regional erosion = 2 m per 1000years
Unknown:
Amount of regional erosion in 1, 000, 000 years.
Solution:
If it takes 1000 years for regional erosion to remove 2m of earth
then, in 1, 000, 000 years, the amount of regional erosion will be: 
⇒ 2000m
In a million years to come, 2000m of earth would have been eroded as a result of regional erosion.
The correct answer is D. How national borders in a region change over time.
Explanation:
The main purpose of maps is to show geographical features including natural physical features such as mountains or rivers, and political features that refer to the use of land by humans and the divisions created by them. Due to this, through maps, it is possible to visually show cities, states, regions countries, etc. In this context, a series of maps can be used to show the evolution or change of national borders because this is part of political features. Also, other aspects such as policies, beliefs, or economic events are not geographical and due to this cannot be depicted through maps.
