Answer:
A drop in the birthrate
Explanation:
This wouldn't really be an increase because if the birthrate drops in, lets say, africa, there wouldn't be an increase in immigration.
Hope this helps!!
Answer and Explanation:
About two-thirds of the Earth's surface lies beneath the oceans. The depths of the open ocean were mostly a matter of speculation before the 19th century. Most people thought ocean floor was flat and featureless. In the early 16th century, a few navigators found that the open ocean can differ considerably in depth by taking soundings with hand lines, which shows that the ocean floor was not as flat as it believed.
At the beginning of the 1950s, scientists used magnetic instruments adapted from airborne devices to recognize odd magnetic variations across the ocean developed during World War II to detect submarines. They found that the iron-rich and volcanic rock make up the ocean floor-- contains a strongly magnetic mineral and can distort compass readings. In the early 18th century, this distortion was recognized by Icelandic mariners. Magnetite gives measurable magnetic properties; these magnetic variations help to study the deep ocean floor.
The answer is A. When it comes to importing agricultural goods I think u would need advanced heavy automobiles to move the goods into the country so I don't think B C or D are correct.
Answer:
B, and C
Explanation:
I hope that this helped you ;D
Earth is always changing, always moving.Convection current cause magma to rise and fall, moving earth's surface in different directions.
