What is a volcano that is erupting or has erupted in the last 100 years called?

Answers

Answer 1
Answer: A volcano that is erupting or has erupted in the last 100 years is called an active volcano. According to scientists, a volcano that has a history of having erupted within the last 10,000 years is still likely to erupt again in the future therefore it is considered active. If a volcano has not erupted within the last 10,000 years, then it is classified as dormant. If there is no known history of the volcano erupting then it is classified as extinct. It is however important to note that it is sometimes there are very minimal diffrences between dormant and active volcanoes.
Answer 2
Answer:

Answer:

A volcano that has erupted in the last 100 years called an "Active Volcano".

Explanation:

A volcano is a mountain that forms when the magma reached the surface to the earth. Magma reaches the surface because it is less dense than the solid rock around it.

An Active volcano erupts on a regular basis or it can erupt at any time and the results were devastated. examples of an Active volcano is mount Katmai in Alaska.


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How could a collision between two sea floor plates produce volcanic activity?

Answers

The more dense plate could move under the less dense plate creating magma which can cause volcanic eruptions.
The more dense plate could move under the less dense plate creating magma which can cause volcanic eruptions.

State why most biologists consider rna to be lifes first coding system

Answers

Because RNA( Ribosominal Nucleic Acid) converts into DNA, also meaning RNA codes for DNA.

Rising levels of carbon dioxide most likely

Answers

Answer:

The elevating levels of carbon dioxide most probably can diminish the productivity on the land and the sea. In case, when there is an elevating level of carbon dioxide in the atmosphere, more amount of carbon dioxide gets dissolved within the water bodies like sea. This further enhances the levels of pH, which leads to coral bleaching and other deleterious things that can hamper biodiversity found in the water ecosystem.  

Even on land, the phenomenon of global warming resulting due to an increase in the levels of greenhouse gases leads to change in climate. Due to change in climate, a decline can be witnessed in the diversity of crops, and thus also diminishes productivity, which hampers farmers that depends on productivity as the source of income.  

Since the Inbdustrial Revolution, human sources of CO2 emissions have been growing.
Activities such as buring fossil fuels, and deforrestation are the primary cause of the increased CO2 concentrations in the atmosphere.

The domestication of plants and animals is a hallmark ofSelect one:
a. the hominids.
b. Homo erectus.
c. the paleolithic era
d. the neolithic era.
e. the first Homo sapiens.

Answers

The domestication of plants and animals is a hallmark of the neolithic era - D. This was the time when humans first started domesticating different animals and more importantly, started growing crops whichenabled them to start living on one location and staying there for longer times. 
The domestication of plants and animals is a hallmark of the neolithic era.
The answer is D.

Where does one ocean stop and another start?

Answers

The ocean diesnt have a starting or stopping point. It is all connected. If this is a question for school or something it's a trick question.

Growth of chest hair, deepening of the voice, and muscle growth are secondary sex characteristics. Which most likely affects the development of these traits? testes ovaries prostate gland vulva

Answers

Answer: testes

Explanation:

The testes are the male gametes which are present inside the pouch called as scrotum. The testes perform two functions that is they produce sperms and male sex hormone testosterone. The hormone testosterone is secreted by the cells of the seminiferous tubules also called as Leydig cells. The testosterone in males start producing during puberty. It is responsible for the development of secondary sexual characteristics in males like growth of facial, axial, chest and pubic hair, deepening of voice and growth of the muscles.

The testes is the most likely to affect the development of these.