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The ozone in the stratosphere is essential for life on Earth because it absorbs the sun’s harmful ultraviolet (UV) radiation. This protection prevents skin cancer, cataracts, and other health issues in humans while also shielding ecosystems and agricultural crops from UV damage. Related Questions: List two main sources of acid rain. List four human activities … Read more
Burning of fossil fuels for transportation, electricity generation, and industries. Deforestation, which reduces the absorption of carbon dioxide. Agricultural activities, including the use of chemical fertilizers and pesticides. Industrial processes that release harmful gases like sulfur dioxide, nitrogen oxides, and carbon monoxide. Related Questions: List two main sources of acid rain. What is the importance … Read more
The two main sources of acid rain are: The burning of fossil fuels, such as coal and oil, which releases sulfur dioxide (SO₂) into the air. Vehicle emissions and industrial processes, which release nitrogen oxides (NOₓ) into the atmosphere. Related Questions: List four human activities that contribute to air pollution. What is the importance … Read more
Related Questions: CHEMICAL EQUILIBRIUM ACIDS, BASES AND SALTS ENVIRONMENTAL CHEMISTRY-AIR ENVIRONMENTAL CHEMISTRY-WATER ORGANIC CHEMISTRY BIOCHEMISTRY EMPIRRICAL DATA COLLECTION AND ANALYSIS QUALITATIVE ANALYSIS Define chemical equilibrium with example What is meant by chemical equilibrium? Differentiate between reversible and irreversible reactions? State Le-Chatelier’s principle. What is the significance of the equilibrium constant (Kc)? Why does a catalyst … Read more
Related Questions: What are hydrocarbons? Give three examples of unsaturated hydrocarbons. How can you differentiate ethane from ethene? What do you mean by dehydration reaction? Give one example. Draw structural formulas of an alkane, an alkene, and an alkyne containing five carbon atoms. What is the general formula for alkenes? How is ethene prepared from … Read more
Related Questions: CHEMICAL EQUILIBRIUM ACIDS, BASES AND SALTS ENVIRONMENTAL CHEMISTRY-AIR ENVIRONMENTAL CHEMISTRY-WATER ORGANIC CHEMISTRY BIOCHEMISTRY EMPIRRICAL DATA COLLECTION AND ANALYSIS QUALITATIVE ANALYSIS Define chemical equilibrium with example What is meant by chemical equilibrium? Differentiate between reversible and irreversible reactions? State Le-Chatelier’s principle. What is the significance of the equilibrium constant (Kc)? Why does a catalyst … Read more
Vitamins and minerals are both essential nutrients required for various bodily functions, but they differ in their chemical nature, sources, and roles in the body. Vitamins are organic compounds, meaning they contain carbon, and they are required in small amounts to regulate body processes. They are divided into two categories: fat-soluble vitamins (A, D, E, … Read more
Enzymes are biological catalysts that speed up chemical reactions in the body without being consumed in the process. They are mostly proteins and play a crucial role in digestion, metabolism, and various biochemical reactions. In digestion, enzymes break down complex food molecules into simpler forms that the body can absorb. For example, amylase breaks down … Read more
Polysaccharides are complex carbohydrates that consist of long chains of monosaccharides linked together by glycosidic bonds. They serve as energy storage molecules or provide structural support in living organisms. There are two main types of polysaccharides. Storage polysaccharides include starch, which is found in plants such as potatoes, wheat, and rice, and glycogen, which is … Read more
Nucleic acids are macromolecules that store and transmit genetic information. Types of Nucleic Acids: 1. DNA (Deoxyribonucleic Acid) Structure: Double helix Sugar: Deoxyribose Nitrogen Bases: A, T, G, C Function: Stores genetic information 2. RNA (Ribonucleic Acid) Structure: Single-stranded Sugar: Ribose Nitrogen Bases: A, U, G, C Function: Helps in protein synthesis Importance of Nucleic … Read more