Environmental Science Quiz

Questions and Answers

Define deforestation. What are the causes of deforestation?

Deforestation is the clearing or thinning of forests by humans. Causes include agricultural expansion, logging, infrastructure development, and urbanization.

What are the disadvantages of renewable energy sources?

Some disadvantages include high initial costs, potential environmental impact during installation, and intermittency of energy supply.

What are the causes of ozone layer depletion?

Causes include the release of chlorofluorocarbons (CFCs), halons, and other ozone-depleting substances through industrial activities.

How can we control noise pollution?

Control measures include using soundproof materials, enforcing noise regulations, maintaining vehicles, and using quieter machinery. Signup and view all the answers

Write a short note on E-waste.

E-waste refers to discarded electrical and electronic devices. It poses environmental risks due to toxic substances and requires proper recycling methods. Signup and view all the answers

What are the harmful effects of water pollution?

Harmful effects include degradation of water quality, harm to aquatic life, human health risks, and disruption of ecosystems. Signup and view all the answers

Define greenhouse effect. How does it affect global warming?

The greenhouse effect is the trapping of heat in the Earth's atmosphere by greenhouse gases. It contributes to global warming by raising average temperatures. Signup and view all the answers

Write a short note on recycling.

Recycling is the process of converting waste materials into new products. It conserves resources, reduces pollution, and minimizes waste. Signup and view all the answers

Write the impacts and effects of an earthquake.

Impacts include destruction of infrastructure, loss of life, economic loss, and psychological effects on survivors. Signup and view all the answers

What are the effects of war disaster?

Effects include destruction of infrastructure, displacement of people, loss of life, and long-term psychological trauma. Signup and view all the answers

The organisms that eat both plants & animals are called?

Omnivores Signup and view all the answers

Ozone layer is located in?

Stratosphere Signup and view all the answers

Which type of waste cannot be decomposed by microorganisms?

Plastic Signup and view all the answers

Use of fossil fuels causes a problem of:

All Signup and view all the answers

More acid rain occurs in?

Both (a) & (b) Signup and view all the answers

The role of which agency is important in disaster prevention?

All of the above Signup and view all the answers

Define ecology.

Ecology is the study of interactions between living organisms and their environment. Signup and view all the answers

The exhaust emitted by automobiles is a major source of ____ pollution.

air Signup and view all the answers

Full form of BOD is ____.

Biochemical Oxygen Demand Signup and view all the answers

Define acid rain.

Acid rain is precipitation that is significantly more acidic than normal, often caused by sulfur dioxide and nitrogen oxides in the atmosphere. Signup and view all the answers

What are the consequences of disaster on society? (any one)

Consequences include loss of life, economic disruption, and social dislocation. Signup and view all the answers

Give 2 examples of natural disasters.

Earthquakes, hurricanes. Signup and view all the answers

Study Notes

Deforestation

Deforestation is the large-scale removal of trees and forests, leading to habitat loss and climate impact.
Causes include agricultural expansion, logging, infrastructure development, overpopulation, and mining.

Renewable Energy Disadvantages

High initial investment costs can deter widespread adoption.
Intermittent energy supply affects reliability (e.g., solar and wind depend on weather).
Geographic limitations restrict availability (some areas may not have adequate resources).

Ozone Layer Depletion

Major causes include aerosol sprays, refrigerants (CFCs), and industrial emissions.
Increased UV radiation due to ozone depletion can lead to skin cancers and eye cataracts.

Noise Pollution Control

Implementing noise barriers and soundproofing in construction can reduce traffic and construction noise.
Promoting use of quieter technologies and vehicles helps limit noise levels.
Community awareness and regulations can play a crucial role in managing noise.

E-Waste

Electronic waste includes discarded electronic appliances like computers, TVs, and smartphones.
Contains hazardous materials such as lead, mercury, and cadmium, posing health risks.
Proper e-waste recycling can recover valuable materials and minimize environmental impact.

Harmful Effects of Water Pollution

Contaminated water can cause serious health issues, including cholera and gastrointestinal diseases.
Ecosystem damage occurs, affecting fish populations and other aquatic life.
Polluted water sources can lead to loss of biodiversity and disrupt aquatic habitats.

Greenhouse Effect

The greenhouse effect is the trapping of heat in Earth's atmosphere by greenhouse gases (e.g., CO2, CH4).
This phenomenon contributes to global warming, causing extreme weather patterns and rising sea levels.

Recycling

Recycling involves converting waste materials into reusable resources to reduce landfill use.
It conserves natural resources, saves energy, and decreases pollution.
Community engagement and proper waste management policies enhance recycling efforts.

Earthquake Impacts and Effects

Earthquakes can cause widespread destruction of infrastructure, leading to loss of life and injury.
Secondary effects include tsunamis, landslides, and aftershocks.
Economic repercussions include loss of property, disruption of businesses, and costly rebuilding efforts.

Effects of War Disasters

War results in loss of lives, displacement of populations, and destruction of families.
Long-term social effects include trauma, mental health issues, and breakdown of communities.
Environmental consequences can include destruction of ecosystems and pollution.

Air Pollution

Air pollution refers to harmful substances in the atmosphere that can impact health and environment.
Effects include respiratory diseases, cardiovascular issues, and environmental damage such as acid rain.

Definitions

Trauma: A psychological response to deeply distressing or disturbing events.
Panic: An overwhelming feeling of fear or anxiety that can lead to irrational behavior.

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Description

Test your knowledge on key environmental issues by answering short questions about deforestation, renewable energy, pollution, and more. This quiz focuses on the understanding of the causes and effects of various environmental problems. Attempt to answer any eight out of ten questions.