what can be said about the percentage of elements found in significant amounts in earths biosphere lithosphere hydrosphere and atmosphere compared to the total number of elements listed on the periodic table
Answers
The lithosphere, that is, the solid earth is formed of a limited number of elements and is mainly composed of silicon and oxygen. Hydrosphere refers to all the waters on the Earth, that is, oceans, surface water, glaciers, and groundwater. It is formed of a limited number of elements and is mainly composed of hydrogen and oxygen.
The biosphere is the sum total of all the living matter and is formed of a limited number of elements comprising carbon, oxygen, nitrogen, hydrogen, phosphorus, and calcium. Atmosphere refers to the layers of gas around the planet Earth and is comprised of a limited number of elements, mainly the oxygen and nitrogen.
Thus, it can be said that very less percentage of elements are found in significant amounts in Earth’s biosphere, lithosphere, hydrosphere, and atmosphere in comparison to the total number of elements listed on the periodic table.
Final answer:
A small number of elements make up most of the Earth's biosphere, lithosphere, hydrosphere, and atmosphere, with oxygen and silicon being predominant in the lithosphere and atmosphere. In contrast, the human body and other living organisms contain many of these common elements in different proportions, highlighting the unique element requirements of biological systems compared to nonliving Earth systems.
Explanation:
When discussing the abundance of elements in Earth's biosphere, lithosphere, hydrosphere, and atmosphere, we find a significant disparity between the percentage of elements found in these spheres compared to the total number of elements listed on the periodic table.
On Earth, particularly in the lithosphere, which includes the Earth's crust, and atmosphere, oxygen and silicon are overwhelmingly present, with oxygen constituting nearly one-half and silicon about one-quarter. This is in contrast to the universe where hydrogen and helium dominate. Despite the myriad of elements listed in the periodic table, only a small fraction of them are found in large quantities on Earth, and even fewer are common in the human body.
In Earth's bio-geochemical environments, such as the oceans, the availability and assimilation of elements like carbon, nitrogen, oxygen, phosphorus, and sulfur vary greatly due to complex chemical, physical, and geological processes. These elements are all essential for life, even if they are relatively scarce on Earth compared to their commonality in the cosmos.
In summary, a very limited number of elements make up the majority of mass in Earth's crust, water, and atmosphere, which contrasts with the extensive list of elements found in the periodic table. The four elements common to all living organisms—oxygen, carbon, hydrogen, and nitrogen—are in different proportions in the nonliving world, indicating differing roles and requirements for elements in living versus nonliving systems.
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C)Quarter horses bred to compete in rodeos are fast and strong.
D) Mules cannot reproduce because they have an odd number of chromosomes.
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Answer:
(D). Mules cannot reproduce because they have an odd number of chromosomes.
Explanation:
Cross species breeding may be defined as the process of breeding between two different species. For example, Mule is obtained by the breeding between male donkey and female horse.
Mules have odd number of chromosomes and they are sterile. This is because, odd number of chromosomes leads to non-disjunction and formation of abnormal chromosomal separation during gamete formation. Due to this, non-functional gametes are formed during meiosis and mules cannot reproduce.
Thus, the correct answer is option (D).
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B.
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C.
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Answers
If you mean child trafficking : Support livelihoods to help families avoid the need to have their children work. Raise awareness of trafficking, reducing the number of children being trafficked. Rehabilitate survivors, and help them rebuild their lives. Protect unaccompanied refugee children, and keep them from the clutches of traffickers.
Answer:
Many ways, but here are just a few:
- Fundraisers and donations to an anti-trafficking organizations.
- People who know what they are talking about and acting on it. They're not being a bystander!
- Be a conscientious and informed consumer.
Hope this helps!!!