Answer:
C. Physical
Explanation:
The Rio Grande river is an example of a physical boundary between two countries since it is a landform. Physical boundaries are very diverse and can include oceans, seas, mountains, rivers, and lakes, just to name a few of the many landforms that can make a physical boundary.
A cultural, geometric or religious boundary could perhaps be visible with the right type of map, but a river does not tell us anything about the religious makeup of a certain area, nor does it reflect the cultural of the inhabitants.
The answer is closer.
Parallax is used to determine how far a star is from earth by measuring its parallactic angle. If star a has a larger parallactic angle than star b, star a is closer than star b.
<h3>What is parallax?</h3>
When there is a difference in the direction of a celestial object as seen by an observer from two points which are widely separated, then this distance is termed as parallax.
This parallax measurement is used to find the distance of the body from Earth which is called Geocentric parallax and from the Sun which is called Heliocentric Parallax.
To know more about parallax, visit:
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This is more like a science question than an art question. Overproduction? Since we humans are on top of the food chain, we could possibly eliminate any other species. It also is a problem because there are limited resources.. For example, oil. Oil is expensive and we humans are disregarding the fact that we already have discovered most of earth except the bottom of the sea. This is where NASA takes place. We are trying to discover habitatable planets for us humans. I could go on and on but I hope I gave you some ideas.
This is to avoid potential turbulent air below. Hope this helps!
Answer:
Some demographic data sources are surveys, samples, census measurements, fieldwork, and observation. When using surveys, demographers research through asking questions to select members of the population.
Explanation:
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