As it takes the sun about 250 million years to orbit the galaxy, the proper motion of stars relative to the Sun will be the dominant effect of changes in the sky. The visible effects of the rotation will be far slower.
All stars move in the sky, some faster some slower, and in more or less random directions, not just moving around the galaxy.
<span>Good morning!
</span><span>B)
the inability to leave the reef and swim after prey.
</span><span>
One of the characteristics of the polyp, which can not always be seen as negative - after all, the species survives due to natural selection - is its inability to move.
Hugs!</span>

<h3>
<u>Question </u><u>:</u><u>-</u></h3>
What else more you think about the benefits of a volcano and even it's wake
<h3><u>Answer </u><u>1</u><u> </u><u>:</u><u>-</u><u> </u></h3>
- <u>As we all know and it is also mentioned in the above paragraph that volcan</u><u>o</u><u>e</u><u>s</u><u> </u><u>has some negative and positive impacts on manki</u><u>n</u><u>d . The positive impacts mentioned in paragraph are fertile soil, pottery, spectacular secenery etc. </u>
- <u>Some </u><u>more </u><u>benefits </u><u>of </u><u>volcanic </u><u>eruption </u><u>are </u><u>:</u><u>-</u><u> </u>
- Indirectly it produces electricity . magma is generally found near the surface of earth which results in the generation of geothermal energy then this geothermal energy used for producing electricity
- Magma of volcanoes contains very valuable minerals .
- People are so curious about the natural phenomenon happens in the world. Volcanoes are also the one of the cause of curiosity and due to which it becomes a tourist spot. So in simple words , It contribute in the economy of countries.
<h3><u>Question </u><u>:</u><u>-</u></h3>
What I have learned?
<h3><u>Answer </u><u>2</u><u> </u><u>:</u><u>-</u><u> </u></h3>
- From above paragraph I learn that, Volcanic eruption have some positive as well as negative impacts on mankind but the negative impacts are the major reason of concern because volcanic eruptions are the cause of destruction of property, life ,earth etc.
- People life's are more important than anything in the world because if we our alive only then we can get's the benefits of it.
- Some people loss their relatives , migrated from their villages , loss their jobs and property etc. due to eruption of volcanoes.
- During volcanic eruption, It is necessary to know that how can we protect our lives. For example if you are in a house then stay inside, Stay away from exposure of ash because it directly affecting your respiratory tract, If you are driving then stop your car near forests and closes all the glasses of the car and stop driving.
- We should help the people those who are affected from volcanic eruption in every possible way by providing shelters, food, jobs etc.
<h3><u>Question</u><u> </u><u>3</u><u> </u><u>:</u><u>-</u></h3>
What I still want to learn?
<h3><u>Answer </u><u>3</u><u> </u><u>:</u><u>-</u></h3>
- Well ! There are so many things that I still have to learn but it is related to all kind of disasters facing by humans today.
- The major cause of volcanic eruption is the climate change but the major of cause of the climate change are humans which is the greatest threat facing humanity today. Directly and Indirectly human activities are the causes of volcanic eruption.
- So, It is necessary to know about the activities which causes volcanic eruption so that we all can minimize the effect of it.
- Well, I am also curious about the positive impacts of volcanic eruption so that in future, by using advance technology I will find some preventive measures for people who lives in volcanic erupted areas and always concern about their lives . I hope , this future technology will become the reason of happiness of many people.
- I don't know much about volcanic eruption so I still have to learn everything about it.

Unconventional or non criteria pollutants can include several toxic or non-toxic elements. Toxic chemicals, such as benzene, beryllium, PCBs, asbestos and vinyl chloride are man-made unconventional toxic pollutants that are regulated by the EPA. Other forms of unconventional pollution include noise, unpleasant odors and light pollution as well as aesthetic factors.
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Well, to determine the type of sugar that is present and serves to play an important role in the overall structure and function of this particular nucleic acid is by the fact that the strand is single stranded, and not double stranded as in DNA. The only other commonly known Nucleic acid that is single stranded is RNA. Another clue or hint that points us in the direction to state that this a polynucleotide stranded molecule of RNA, is by the presence of the nitrogenous base, Uracil. DNA in place has thymine, uracil is only found on RNA, and is complementary to thymine, if used in transcription. Basically all of this information simply points to RNA, and the sugar contained in RNA would be ribose.