Answer:
True
Explanation:
The prime meridian is the line of 0° longitude, the starting point for measuring distance both east and west around the Earth. The prime meridian is arbitrary, meaning it could be chosen to be anywhere.
Most mountainous I think. I'm pretty sure that is right.
Name two geographic obstacles and one political obstacle that stood in the way of the construction of the Panama Canal.
Answer: The two geographic obstacles that stood in the way of the construction of the Panama Canal was that Panama was very mountainous, and there were a lot of mud slides. One political obstacle was that Panama was part of Colombia. The united states had to negotiate with Colombia before Panama became independent. Engineers had to build a dam, design and build locks, and remove huge amounts of earth and rock in order to overcome the geographical obstacles.
I hope it helps, Regards.
Answer:
c) known to have experienced numerous polarity reversals, as seen by the remnant magnetization of iron-rich minerals in rocks.
Explanation:
Paleomagnetism is the study of the Earth's magnetic fields in sediment (rocks or other archaeological material). This can be used to estimate the age of sediment (or in this case, the seafloor) because it is known that the magnetic field of Earth experienced numerous polarity reversals. This allows is to employ such sequences as a chronologic tool. Paleomagnetism has also been a significant tool in the subjects of continental drift and plate tectonics.
Answer:
Option (D)
Explanation:
Constellation usually refers to the group of stars that forms a particular feature in the sky and which is visible at night. This is visible when the earth is located at the exact position from which it can be viewed. It often helps in the identification and location of the stars in space.
These constellations are visible from the earth when viewed in the evening, but only at particular times in a year. It is because the earth keeps on changing its position with respect to the sun. The earth goes around the sun in an elliptical orbit, and only at a few positions, with favorable conditions such as clear sky, these constellations are visible.
Thus, the correct answer is option (D).
