#1
Which gas is primarily responsible for trapping heat in the Earth's atmosphere?
Carbon dioxide
ExplanationCarbon dioxide traps heat through the greenhouse effect.
#2
Which of the following is a renewable source of energy?
Solar power
ExplanationSolar power is renewable as it relies on the sun's energy.
#3
Which of the following is NOT a greenhouse gas?
Oxygen
ExplanationOxygen is not a greenhouse gas; it does not contribute significantly to the greenhouse effect.
#4
Which of the following is a primary cause of deforestation?
Logging
ExplanationLogging involves the removal of trees, leading to deforestation.
#5
What is the term for the process of converting waste materials into reusable material?
Recycling
ExplanationRecycling transforms waste into reusable materials, reducing resource consumption and waste.
#6
Which of the following is a characteristic of an invasive species?
It outcompetes native species
ExplanationInvasive species often outcompete native species for resources, disrupting ecosystems.
#7
What is the term used to describe the process by which plants use sunlight to convert carbon dioxide and water into food?
Photosynthesis
ExplanationPhotosynthesis is the process by which plants produce food using sunlight.
#8
Which of the following pollutants is a major contributor to acid rain?
Sulfur dioxide
ExplanationSulfur dioxide combines with water vapor to form sulfuric acid in the atmosphere, causing acid rain.
#9
What is the term used to describe the gradual increase in the Earth's average temperature due to human activities?
Climate change
ExplanationClimate change refers to the long-term alteration of temperature and typical weather patterns, largely caused by human activities.
#10
Which of the following is a non-point source of water pollution?
Runoff from agricultural fields
ExplanationRunoff from agricultural fields carries pollutants into water bodies, contributing to non-point source pollution.
#11
Which of the following is a consequence of ocean acidification?
Reduced growth rates of marine organisms
ExplanationOcean acidification impedes the ability of marine organisms to build and maintain their shells and skeletons, affecting their growth.
#12
What is the term used to describe the loss of a species from a particular habitat?
Extinction
ExplanationExtinction occurs when a species completely disappears from its habitat.
#13
What is the term for the variety of life on Earth, including the diversity of species, ecosystems, and genetic diversity?
Biodiversity
ExplanationBiodiversity encompasses all forms of life on Earth and their interactions.
#14
What is the main cause of ozone depletion in the Earth's stratosphere?
Chlorofluorocarbons (CFCs)
ExplanationChlorofluorocarbons released from human activities destroy ozone molecules in the stratosphere.
#15
Which international agreement aims to reduce greenhouse gas emissions to mitigate climate change?
Paris Agreement
ExplanationThe Paris Agreement sets global targets for reducing greenhouse gas emissions.
#16
Which of the following is a major source of indoor air pollution in developing countries?
Solid fuel combustion for cooking
ExplanationBurning solid fuels for cooking indoors releases pollutants, contributing to indoor air pollution.
#17
What is the term for the loss of soil fertility and productivity?
Degradation
ExplanationSoil degradation occurs when soil loses its ability to support plant growth due to various factors.
#18
Which of the following is a major factor contributing to the loss of biodiversity?
Climate change
ExplanationClimate change alters habitats and disrupts ecosystems, leading to biodiversity loss.