A. Silt is no longer carried down river.
Answer:
Negative feedback
Explanation:
I just weighed out the positives and negatives in my head and there were more negatives
Seismic stations consist of a seismometer for sensing ground motion, a clock for determining time, and a recorder for collecting data of earthquakes. They detect and measure Earth's ground motion.
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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.
