Answer:
It is evident from the distinct magnetite orientation that these two rocks came from the mid ocean ridges.
If the rocks were obtained at the same time, sample A which is the rock with wider band of distinct magnetite orientation (2m) must be from the Easy Pacific Rise and the rock sample B with the shorter band of distinct magnetite orientation (1m) is from the Mid-Atlantic Ridge.
Explanation:
The Mid-Atlantic Ridge is a slow spreading center (leading to broader bands of magnetite orientation). It spreads 2-5 centimeters (0.8-2 inches) every year and forms an ocean trench about the size of the Grand Canyon.
The East Pacific Rise, on the other hand, is a fast spreading center (wide band of distinct magnetite orientation). It spreads about 6-16 centimeters (3-6 inches) every year. There is not an ocean trench at the East Pacific Rise, because the seafloor spreading is too rapid for one to develop!
Hope this helps!!!
Answer:
Predicting earthquakes is complex task and some precursors are given below.
Explanation:
- To find out the magnitude of the earthquakes the branch of science named precursory is used to study the occurrence of and identify the earthquake. Also called earthquake forecasting, some natural events that take place are given as under.
1. Changes in animal behavior: Certain animals can respond to the P-waves that are being generated.
2. Emission of Radon gas: is most rocks contain this gas, as this gas can be isotopically distinguished. It's attributed to being release pre-seismic stress or shock waves.
3. Breaking of an ice sheet or landslides: These may be issued before some large earthquake.
4. Magnetic and electric charges like the density and thickness in the rock mass.
5. Shaking and vibration of water bodies.
The Ice Ages shaped and sculpted the face of the Earth. Continents that were once connected by land bridges had shifted and separated during the Ice Ages. Therefore without the Ice Ages, Earth would look significantly different, and some of the natural beauties like Niagra Falls would not exist.
Answer:
the Clipper Ship
Explanation:
A clipper was a type of mid-19th-century merchantsailing ship, designed for speed. Developed from a type of schooner known as Baltimore clippers, clipper ships had three masts and a square rig. They were generally narrow for their length, small by later 19th century standards, could carry limited bulk freight, and had a large total sail area. Clipper ships were mostly constructed in British and American shipyards, though France, Brazil, the Netherlands and other nations also produced some. Clippers sailed all over the world, primarily on the trade routes between the United Kingdom and China, in transatlantic trade, and on the New York-to-San Francisco route around Cape Horn during the California Gold Rush. Dutch clippers were built beginning in the 1850s for the tea trade and passenger service to Java.[
