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Molodets [167]
3 years ago
11

Ecological tipping points related to the earth's major natural systems are also called

Geography
1 answer:
o-na [289]3 years ago
7 0
Ecological tipping points are the<span> points where environmental problems reach threshold level causing irreversible shifts in the behavior of natural systems. These are also called thresholds where the biodiversity changes.</span>
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What happens during the entire fusion process in the Sun? Two hydrogen nuclei come together to produce one helium nucleus and tw
Hoochie [10]

Answer: Two hydrogen nuclei come together to produce one helium nucleus and two protons, and energy is released.

Explanation:

All stars (including the Sun) at birth begin to fuse two hydrogen nuclei to form helium through nuclear fusion.  

In this sense, nuclear fusion is the union of two light atoms, releasing energy in the process, which is the cause of the great luminosity of a star. Especifically, the hydrogen nuclei will begin to fuse, generating helium nuclei in the process and releasing huge amounts of energy.

To unerstand it better:

To shine, the stars transform their hydrogen into helium by means of nuclear fusion. When at half of its life a star is without hydrogen, the nucleus becomes entirely helium and the star declines, becoming colder and brighter due to the energy generated by the nuclear reactions, then the star begins to contract.  

Nevertheless, if the star is bigger, this helium will be also consumed and the nucleus transformed in Carbon, then in Oxigen, and so on. Being the last transformation Iron until the star delivers all its energy.

5 0
3 years ago
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I am already a member why am I locked out
Ber [7]

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Explanation:

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5 0
2 years ago
describe the difference between a tropical disturbance and a hurricane
kow [346]

The way to tell them apart from each other lies in the speed of the wind. When the speed of the wind is between 39 mph to 73 mph, the tropical depression developed (low pressured areas in the ocean that have the power to grow stronger) is classified as a tropical storm.  Hurricanes are more intense and are formed over oceans with the wind speed reaching at least 74 mph.  Hurricanes also have a noticeable eye in the center of the storm and tropical storms don't have any at all. Basically, a hurricane is a more intense version of a tropical storm that appear to be smaller compared to a tropical storm.

Hope I answered this correctly and hope it helps! :)

8 0
3 years ago
Sudan’s many years of civil war have resulted from conflicts between _____.
Ierofanga [76]

<span>The origin of the Sudan civil war lies in the conflict between the Muslim Arabs and Christian animists. Until 1946, the British government, in collaboration with the Egyptian government administered south Sudan and north Sudan as separate regions.Southern Sudan is inhabited primarily by Christians and animists while most of the north is inhabited by Muslims who were culturally Arabic. The Sudan civil war resulted from conflict between these two groups.</span>

<span> </span>

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3 years ago
What element is often found on tables? headers, legend, horizontal axis, vertical axis
Anarel [89]

Answer:

headers

Explanation:

A table is the visualization of data by representing attributes or data in series of rows and columns. One important and key feature of a table is the table header. The table header gives a well defined title to use to which table is put to. It can be a "table of age of goats and gender". All tables must be titled with a header in this manner.

8 0
3 years ago
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