The science of how Messi keeps the ball close to himself photo credit: ZaleDesigns Messi is a magician with the ball at his feet. He's in my opinion the best player in the sense that he can control the ball so well, runs so fast with the ball & changes the direction at full speed like it's a walk in the park. For starters he started playing very early (at 3) which is crucial if you want to be a good player. In that aspect, he's God gifted as he had dribble skills which is genetic in my opinion. Height He is short which means a low center of gravity so it's difficult to push him off the ball. That's why we see that anyone rarely can topple him down, instead players much larger than him lose possession to him. So his short height suits his style of play & is a blessing in disguise. Change of pace Messi changes his pace really well. He starts slow and runs directly at the defender which means the defender has to stop & focus on him. When he reac...
Natural Resources
Introduction
The resources, available on the Earth and the energy being received from the Sun, are essential to meet the basic necessities of all life-forms on the Earth.
The biotic component incorporates all living of the biosphere.
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| human sperm cells |
The abiotic component incorporates the air, the water, and the soil of the biosphere.
Biogeochemical Cycles
Biogeochemical cycles explain a constant interaction between the biotic and abiotic components of the biosphere.
Biogeochemical cycles are a dynamic phenomenon that helps to maintain the stability in the ecosystem.
The significant biogeochemical cycles are −
Water Cycle
Carbon Cycle
Nitrogen Cycle
Oxygen Cycle
Let’s discuss each of them in brief −
Water Cycle
The whole process, starting from the water evaporation, rainfall to flowing back into the sea via rivers, is known as the water-cycle.
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| water forming a circle |
As shown in the image given above, water cycle is a complex phenomenon. During the process of water cycle, it helps ecosystem by maintaining its balance.
Water cycle helps in making new fertile soil, increasing the fertility of soil, providing nutrition to the biotic components in different ecological regions, etc.
Carbon Cycle
Carbon is found on the Earth in various forms, such as diamond and graphite (in solid form) and in combined state i.e. carbon and dioxide (as a gas).
Carbon is one of the essential elements for the photosynthesis.
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| carbon monoxide released into the atmosphere |
The process of photosynthesis converts carbon dioxide, which is present in the atmosphere or dissolved in water into glucose molecules.
The glucose provides energy to living things that involves the process of respiration.
In the process of respiration, oxygen may or may not be used to convert glucose back into carbon dioxide.
Lastly, the carbon dioxide goes back into the atmosphere.
Nitrogen Cycle
About 78 percent part of our atmosphere is shared by nitrogen alone.
Nitrogen is a part of many molecules, which are essential for the life.
There are a few varieties of bacteria that help in nitrogen-fixing.
These special bacteria convert the comparatively inert nitrogen molecules into nitrates and nitrites essential for the life in direct or indirect way.
The nitrogen-fixing bacteria are largely found in the roots of legumes.
Oxygen Cycle
In the total constituents of our atmosphere, about 21 percent is shared by oxygen.
Oxygen is also found in the Earth’s crust.
Oxygen is an essential component of most of the biological molecules, including carbohydrates, nucleic acids, proteins, and fats (or lipids).
Oxygen, present in the atmosphere, is used especially up in the three following processes −
Combustion
Respiration
Formation of oxides of nitrogen
Oxygen is returned back to the atmosphere by the process of photosynthesis.
Oxygen is lifeline of most of the organisms found on the earth, but for some bacteria, it is poisonous.
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