Questions and Answers
What is an essential characteristic of Environmental Studies?
Which method is not included in the recognized management of high level radioactive waste?
Identify the factor that does not influence the hydrosphere due to development activities.
What is a significant abiotic factor in environmental studies?
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Which sequence correctly represents the 4Rs principle in waste hierarchy?
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What is the gaseous phase of water referred to as?
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Which of the following is a renewable energy source?
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What size range classifies aerosol particles?
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Which of the following is considered a primary pollutant?
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Which gas is produced when alum is mixed with water?
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Study Notes
United States Census Bureau
- USCB stands for United States Census Bureau.
Earth Day
- Earth Day is celebrated in April (Ape-22).
Environmental Studies
- Environmental Studies is an interdisciplinary field focused on human interactions with the environment.
- It examines both natural and built environments, along with their interrelationships.
Global Environmental Trends
- Major concerns include degradation of fertile soils, changes in the global atmosphere, and species extinction leading to biodiversity loss.
Radioactive Waste Management
- High-level radioactive waste can be managed through dumping in sealed containers.
Environmental Education Objectives
- Aims to raise consciousness about environmental issues, teach appropriate behaviors, and foster awareness of ecological interdependence.
Hydrosphere Impact
- Development activities can lead to water pollution.
Abiotic Factors in Environment
- Key abiotic factors include temperature, wind, and water.
Atmospheric Height
- The atmosphere extends approximately 800 km above the Earth's surface.
Waste Hierarchy (4Rs Principle)
- The correct sequence of the waste hierarchy is Reduce-Reuse-Recycle-Recover.
Greenhouse Gases
- Carbon dioxide is considered a greenhouse gas due to its ability to absorb heat.
Water Vapor
- Water vapor is the gaseous phase of water, resulting from evaporation or boiling.
Renewable Energy Sources
- Renewable energy sources include solar energy, ocean currents, and biomass.
Aerosol Particle Size
- Aerosols consist of particles ranging from 0.01 to 1 micron in size.
Primary Pollutant Identification
- Oxygen is not classified as a primary pollutant.
Carbon Dioxide Release from Alum
- Carbon dioxide is released when alum is added to water.
Plant Sensitivity to Sulphur Dioxide
- Tomato plants are extremely sensitive to sulphur dioxide.
Water Treatment
- Crushed rock is not used as a filter material in water treatment.
Specific Gravity of Garnet Sand
- Garnet sand has a specific gravity of 4.2.
Vermi-composting
- Vermi-composting is the process of decomposing biodegradable waste using earthworms.
Slow Sand Filter Maintenance
- Slow sand filters require cleaning every 1-3 months.
Swimming Pool Water Treatment
- Pressure filters are utilized for treating swimming pool water.
Biodegradable Waste
- Food waste is an example of biodegradable waste; polythene bags and synthetic fibers are non-biodegradable.
Water Filtration Process
- Disinfection is performed after the filtration of water.
Light Wavelengths in Atmosphere
- Predominant light wavelengths in the lower atmosphere are greater than 300 nm.
Ionosphere Function
- The ionosphere aids in high-frequency radio transmission due to its ionized particles.
Greenhouse Gas Radiation Trapping
- Greenhouse gases trap infrared radiation from the sun.
Geysers and Hot Springs
- Water ejected from the Earth's interior as hot water is termed hot springs.
Green Revolution
- The Green Revolution is primarily associated with agriculture.
Deforestation and Atmospheric Gases
- Deforestation decreases the levels of oxygen in the atmosphere.
Soil Fertility Enhancement
- Crop rotation enhances soil fertility.
Ecosystem Types
- Forests are classified as terrestrial ecosystems.
Renewable Resources
- Resources replaced naturally are categorized as renewable.
Oil Resources
- Oil resources refer to oil that may become available for use.
Coal Resource Assessment
- Coal deposits not economical today are considered part of coal resources.
Primary Energy Source in the US
- Oil resources are the leading source of energy in the United States.
Organic Energy Resources
- Fossil fuels are energy sources derived from natural organic materials.
Oil Traps
- All oil traps contain an impermeable layer.
Fuel Type Availability
- The world has the least amount of oil compared to other fuel types.
Carbon Dioxide Emission from Fuels
- Natural gas produces the least carbon dioxide per unit of energy.
Nuclear Energy Source
- Nuclear energy is derived from the fission of U-235 atoms.
Amazon Rainforest Oxygen Contribution
- The Amazon rainforest produces approximately 20% of Earth's atmospheric oxygen.
Conservation Definition
- Conservation involves the wise use of natural resources.
Discovered Species Count
- Approximately 1.5 million plant and animal species have been described so far.
Global Species Diversity Estimate
- Robert May estimated approximately 7 million species globally.
Animal Species Compositions
- Over 70% of recorded species are animals, while plants represent about 22%.
Insects as Animal Species
- Insects comprise around 70% of all known animal species.
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Description
Test your knowledge on Environmental Studies topics and important dates such as Earth Day. This quiz covers various aspects including definitions, key organizations, and interdisciplinary nature of the field. Challenge yourself and see how well you understand environmental concepts!
