Environmental Concerns
Telangana Open School (TOSS) · Class 12 · Chemistry
Flashcards for Environmental Concerns — Telangana Open School (TOSS) Class 12 Chemistry. Quick Q&A cards covering key concepts, definitions, and formulas.
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Define environment.
Answer
Environment refers to the biotic and abiotic surroundings with which living organisms interact. It includes air, water, soil, living organisms, and energy.
What are the two components of environment?
Answer
The two components are: (i) Abiotic components – air, water, soil, energy, radiation; (ii) Biotic components – microbes, plants, animals.
List three biotic components of environment.
Answer
Examples of biotic components: bacteria, algae, and plants.
Name the four segments of environment.
Answer
The four segments are: (i) Biosphere, (ii) Atmosphere, (iii) Hydrosphere, (iv) Lithosphere.
What is biosphere?
Answer
The biosphere is the part of Earth where organisms can survive and reproduce. It involves a delicate balance between living organisms and their environment.
What is atmosphere?
Answer
Atmosphere is the thin layer of gases surrounding Earth, containing oxygen and water vapor essential for life.
Define hydrosphere.
Answer
Hydrosphere includes all water resources on Earth such as oceans, rivers, lakes, glaciers, groundwater, etc. Life cannot exist without it.
What is lithosphere?
Answer
Lithosphere is the solid outer layer of Earth containing minerals, metals, rocks, and soil that support life.
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