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Hydrogen is the most abundant. are you asking about natural or man made chemicals? The definition of a chemical is "A substance with a distinct molecular composition that is produced by or used in a chemical process"

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15y ago

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What is earths most important star?

The most important star for Earth is the Sun. It provides heat and light, which are essential for life on our planet. Without the Sun, Earth would not have the necessary conditions to support life as we know it.


Which form of energy is especially important for living things and why?

Chemical energy is especially important for living things because it is stored in the bonds of molecules and is released during metabolic processes. This energy fuels essential biological functions, such as growth, reproduction, and cellular processes. Organisms convert chemical energy from food into usable forms, like ATP, to support their life-sustaining activities. Without chemical energy, life as we know it would not be possible.


What are the most important elements for the terrestrial life?

The most important elements for terrestrial life are water, oxygen, carbon, and nitrogen. Water is essential for chemical reactions and cellular processes. Oxygen is needed for respiration. Carbon is the backbone of organic molecules, and nitrogen is crucial for building proteins and genetic material.


Why are chemical reactions important?

All around as, natural or artificial, are chemical products; and chemical products are the result of chemical reactions. The life is an extremely complex set of chemical reactions.


Is photosynthesis the most important chemical reaction for life on earth?

grade 9 academic science ?? ;) anyhow... photosythesis should win the most important chemical reaction on earth "award" because if there was no photosynthesis, it would mean the end of plants generating oxygen. So therefore all living things would die because no living things can survive without oxygen!

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What is earths most important star?

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What is the most important reason that rivers have different kind of animal life than oceans have?

Rivers are freshwater whereas the ocean is saltwater. They each support different kinds of life.


What is the most important for life?

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What is the important basic resources needed to support life?

Water.


Which form of energy is especially important for living things and why?

Chemical energy is especially important for living things because it is stored in the bonds of molecules and is released during metabolic processes. This energy fuels essential biological functions, such as growth, reproduction, and cellular processes. Organisms convert chemical energy from food into usable forms, like ATP, to support their life-sustaining activities. Without chemical energy, life as we know it would not be possible.


What are the three important elements of chemical elements?

Metals nonmetals and metalliods


Why are hydrothermal vents important?

Hydrothermal vents are important because they support unique ecosystems that are not dependent on sunlight. These ecosystems provide important insights into the origins of life, adaptation to extreme conditions, and potential for life on other planets. Additionally, hydrothermal vents contribute to the chemical composition of the ocean and play a role in regulating Earth's temperature.


Why are chemical changed important in your everyday life?

All around us are chemical products, many being artificial.


What are the most important elements for the terrestrial life?

The most important elements for terrestrial life are water, oxygen, carbon, and nitrogen. Water is essential for chemical reactions and cellular processes. Oxygen is needed for respiration. Carbon is the backbone of organic molecules, and nitrogen is crucial for building proteins and genetic material.