Answer:
B. Aerobic bottom water
D. High organic productivity in the overlying oxygen rich water
Explanation:
A Shale is a sedimentary rock usually formed from silt and clay-size mineral. There are different colors of Shale. The Black Shale is formed under anaerobic conditions. This means that oxygen is deficient in the water where the Shale forms.
A little amount of organic materials is required for the formation of Black Shale and because Black Shale is formed in an environment lacking oxygen, an oxygen-rich water would not be necessary for its growth. Sediments are necessary in the formation of Black Shale.
Cultural convergence occurs more rapidly with improved transportation.
<h3>What is cultural convergence?</h3>
Cultural convergence is the phrase used to describe how civilizations tend to alter and adapt when they are frequently exposed to different cultures. Cultures will become more similar the more they interact with one another. Time and points of interaction are two major aspects that affect cultural convergence. Greater commonalities between cultures emerge from longer exposure times, of course. Increased contact rates, accessibility to communication and transportation, and membership in the same groups all speed up the rate of convergence. It will take longer for a civilization to absorb the traditions of another culture if they are just sometimes exposed to it through pop culture media than if they are exposed to their food, language, art, etc.
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The typical time interval between sunrise and sunset will be 50 hours.
<h3>What is earth rotation?</h3>
The rotation of the planet Earth around its own axis and variations in the orientation of the rotation axis in space are referred to as Earth's orbit or Earth's spin. Earth rotates prograde in an easterly direction. The Earth rotates counterclockwise when viewed from the northern polar star Polaris. The Northern Hemisphere's North Pole, sometimes referred to as the Geographic North Pole or Terrestrial North Pole, is where the Earth's axis of rotation and surface meet. The North Magnetic Pole of the Earth is distinct from this place. The other location where the axis of rotation of Earth crosses the surface is the South Pole, which is located in Antarctica. The Earth revolves once every 24 hours or so in relation to the Sun, but only once every 23 hours, 56 minutes, and 4 seconds in relation to other far-off stars.
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Answer:
Crater Lake
Crater Lake, Klamath County. Nearly 2,000 feet deep, Crater Lake, in southern Oregon, is the deepest lake in the United States. This must-see Oregon attraction is the result of the ancient Mount Mazama erupting over 7,000 years ago and collapsing into itself.
Answer:
It absorbs less heat per molecule than the greenhouse gases methane or nitrous oxide, but it's more abundant and it stays in the atmosphere much longer. Increases in atmospheric carbon dioxide are responsible for about two-thirds of the total energy imbalance that is causing Earth's temperature to rise
