<h3>Mid-ocean ridges and plate tectonic theory</h3>
Explanation:
The German geophysicist, Alfred Wegener, proposed the continental drift theory which explained about the drifting of continents from a single large mass.
With the advent of sonar-equipped ships, scientists were able to map the ocean floor. They collected topographic data from the ocean bed which showed them varied features like valleys, high mountains, flat plains etc.
Later, they discovered a ridge in the mid-Atlantic Ocean which ran parallel to the continental coastline and up above 1-2 km above the ocean floor. Then similar mid-ocean ridges were found in other major oceans like the Pacific and the Indian Ocean which also ran parallel to the continental coastline.
These ridges corresponded to hot magma regions which drifted the ocean floor corresponding with Wegner’s continental drift theory.
Later with the discovery of magnetometers and its usage in ships, scientists were able to detect the magnetism exhibited rocks on the sea floor.
Combining all the theories, the continental drift theory, ridges of mid-Atlantic Ocean, magnetism of rocks at ocean bed all led to the formulation of the plate tectonic theory.
Answer and Explanation:
Prom is the older technology while both prom and eprom are nonvolatile memory devices. Proms can be programmed only once while eproms are reusable and can be programmed multiple times
C. the downhill flow of soil and rock resulting from gravity.
here is why... B and D don't make any sense and are not relevant to the question and A really doesnt go along with the question either.
Answer:
Growth through natural increase occurs when the birth rate exceeds the death rate. ... The United States has had declining fertility and mortality rates for most of this ... In the second stage of the demographic transition of these regions, ... The population growth rate is still high, about 1.4 percent in 2005.
Eminent Australian scientist Professor Frank Fenner, who helped to wipe out smallpox, predicts humans will probably be extinct within 100 years, because of overpopulation, environmental destruction and climate change
Explanation:
The yellow wood national park sits on a dormant volcanos crater.