In the mid-twentieth century and corroborated ever since, researchers dredging the seafloor could not find any materials older than 180 million years.
<h3>
What do you understand by seafloor ?</h3>
The surface of an ocean or sea: seafloor According to this theory, the Earth's crust is divided into a number of enormous plates that together form the continents and ocean floors and are supported by a warm, plastic "mantle" beneath the surface. Mr. Walter Sullivan
Deposits of common minerals like copper, zinc, nickel, gold, silver, and phosphorus can be found on the seafloor. These deposits are nodules on silt from the abyssal plain that are typically 3 to 10 centimeters (1 to 4 inches) in diameter and appear as crusts on volcanic and other rocks.
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<span>D) Mexican businesses have relocated to the united states where labor costs are lower.</span>
Answer:
I would say C.
Explanation:
It makes the most sence with the question.
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The principle of states that the physical, chemical, and biological processes at work shaping the earth today have also operated in the geologic past is uniformitarianism.
<h3>What is
biological system?</h3>
- A biological system is a complex network which connects several biologically relevant entities.
- Biological organization spans several scales and are determined based different structures depending on what the system is.
- Examples of biological systems at the macro scale are populations of organisms.
- On the organ and tissue scale in mammals and other animals, examples include the circulatory system, the respiratory system, and the nervous system.
- On the micro to the nanoscopic scale, examples of biological systems are cells, organelles, macromolecular complexes and regulatory pathways.
- A biological system is not to be confused with a living system, such as a living organism.
<h3>What in nature is biological?</h3>
- All of the branches of the natural sciences that focus on different facets of life's processes are included in the biological sciences.
- The notion spans all species, from bacteria to animals and plants, and incorporates anatomy, physiology, cell biology, biochemistry, and biophysics.
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Sand 5.0. loam 1.3. clay loam 0.8. silty clay 0.25. clay. 0.05