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Environment Concepts and Spheres
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Environment Concepts and Spheres
Environment Concepts and Spheres
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1
Question
What is the etymological origin of the term environment?
Page 2
Answer
Derived from the French word environner, which means surrounding.
2
Question
What does the term environment refer to in terms of conditions affecting organisms?
Page 2
Answer
Aggregate of all conditions that affect the existence, growth, and welfare of an organism.
3
Question
What factors constitute the sum total of the human environment according to the lecture?
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Answer
Social, economical, biological, physical, and chemical factors which constitute the surroundings of humans, who are both creators and moulders of the environment.
4
Question
How is the environment collectively described in relation to an organism's lifetime?
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Answer
Everything that affects an organism during its lifetime, including all physical and biological surroundings and their interactions.
5
Question
What are the main elements that make up the natural environment?
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Answer
Air, water, soil, forests, and wildlife.
6
Question
How does the natural environment maintain balance among its components?
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Answer
Through a self-regulating mechanism where changes in one component are balanced by others.
7
Question
Into which four spheres is the natural environment divided?
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Answer
Lithosphere, hydrosphere, atmosphere, and biosphere.
8
Question
What characterizes the dynamic nature of the environment?
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Answer
Changes that can be either minor or drastic, benefiting or harming living organisms.
9
Question
What defines the anthropogenic environment?
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Answer
Components introduced by human beings depending on their needs and requirements by the application of modern technology.
10
Question
How do human activities contribute to changes in the anthropogenic environment?
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Answer
Changes introduced into nature by human activity, reworking nature and adapting it to their needs, influencing lives of animals and plants by altering their habitats, with influence being indirect or direct.
11
Question
How does the natural environment differ from the anthropogenic environment?
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Answer
Natural environment operates through self-regulating mechanisms with elements like air, water, soil; anthropogenic includes human-introduced components via technology that alter habitats directly or indirectly.
12
Question
What factors are included in the physical environment?
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Answer
Radiation such as light, temperature, humidity, rain, soil, and other physical factors which directly affect organisms.
13
Question
How does the physical environment determine life on Earth?
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Answer
It determines the existence of any kind of life on Earth by directly affecting organisms in a given area.
14
Question
What role does solar energy play in the physical environment as an example?
Page 5
Answer
Solar energy is crucial for plants in the preparation of food, which in turn provides food to other living organisms.
15
Question
What is the function of soil in the physical environment for plant growth?
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Answer
Soil provides an essential medium for the growth of plants.
16
Question
What components make up the chemical environment of Earth?
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Answer
Gases, water, inorganic elements, and organic substances.
17
Question
Why is the chemical environment different for various groups of organisms?
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Answer
Chemical environment varies for different groups, such as fertilizers, defoliants, and insect sprays for farm livestock, or dissolved gases and nutrients for aquatic organisms.
18
Question
What is a defoliant in the context of chemical environment for farm livestock?
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Answer
A chemical that removes the leaves from trees and plants, used in warfare.
19
Question
What constitutes the chemical environment for aquatic organisms?
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Answer
Different gases, nutrients, and other substances dissolved in water.
20
Question
What organisms are included in the biological environment?
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Answer
All living organisms on Earth, such as bacteria, viruses, algae, herbs, and others.
21
Question
What additional influences does the biological environment describe?
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Answer
Influence of factors such as warmth, moisture, and humidity on plants and animals.
22
Question
Into how many realms is the natural environment on Earth divided?
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Answer
Four realms.
23
Question
What is the lithosphere in the segments of the natural environment?
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Answer
The mantle of rocks constituting the Earth's crust, with two parts: crust and upper mantle.
24
Question
What does the crust include in the lithosphere?
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Answer
Rocks, minerals, and soil.
25
Question
What are the two parts of the Earth's crust?
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Answer
Continental crust and oceanic crust.
26
Question
What lies directly below the Earth's crust in the lithosphere?
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Answer
The mantle.
27
Question
Why is understanding the self-regulating mechanism of the natural environment important for environmental science?
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Answer
It explains how changes in one component like air or water are balanced by others, maintaining ecosystem stability against minor or drastic shifts.
28
Question
How do physical and chemical environments interact to support plant growth as real-world examples?
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Answer
Solar energy (physical) drives food preparation in plants, while soil (physical) and nutrients (chemical) provide the medium and essentials.