<span>The Appalachian Mountains were formed when colliding tectonic plates folded and upthrust, mainly during the Permian Period and again in the Cretaceous Period. The folds and thrusts were then eroded and carved by wind, streams and glaciers. These erosive processes are ongoing, and the topography of the Appalachian Mountains continue to change. They have changed with the miles of land that are cleared of all vegetation and topsoil. In the 1970's coal miners literally blow away the top of a mountain to get to the coal underneath.</span>
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Answer:
Newton's Second Law of Motion says that acceleration (gaining speed) happens when a force acts on a mass . Riding your bicycle is a good example of this law of motion at work. Your bicycle is the mass. Your leg muscles pushing pushing on the pedals of your bicycle is the force.
Explanation:
Answer:
The correct statements would be
- Cyanobacteria allowed organisms that rely on oxygen to evolve.
- Cyanobacteria preceded the first photosynthetic organisms.
- Cyanobacteria produced excess oxygen.
Cyanobacteria, also termed as blue-green algae are the prokaryotes which are able to perform photosynthesis.
They were the major contributors of oxygen in the atmosphere and thus helped the organisms that rely on oxygen to evolve.
By the process of endosymbiosis, they lead to the origin of plants. The chloroplasts present in green plants is considered as the cyanobacteria living in the plant cell. It helps in photosynthesis and in return plants cell provides shelter to it.
It is believed that the oxygen released from early cyanobacteria reacted with dissolved iron ions to form iron oxide.
Answer:
2) Denotative meaning of a word or Denotation.
3) Connotative meaning of a word or Connotation.
4) Ethics and Culture.
Explanation:
2) Which meaning of a word refers to exactly what it is?
The denotative meaning of a word represents the explicit or the exact meaning of that word. Also called the denotation of the word.
3) Which meaning of a word includes what the word may represent?
The Connotative meaningof a word means something suggested or implied by a word. Also called the Connotation of the word.
4) What is the term used for society's tried and true rules that guide life?
Ethics refer to the rules and standards that guide the conduct of individuals; especially members of a societal body.
Culture is the total way of life of a society.
Hence, ethics amd culture both serve as the society's tried and tested rules that guide life.
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