#1
Which of the following is a major greenhouse gas responsible for global warming?
Carbon dioxide
ExplanationCarbon dioxide traps heat in the atmosphere.
#2
Which of the following is NOT a primary cause of deforestation?
Reforestation
ExplanationReforestation involves planting trees, which counters deforestation.
#3
What is the term for the process of gradual increase in the Earth's average temperature due to human activities?
Global warming
ExplanationGlobal warming results from human-induced greenhouse gas emissions.
#4
What is the term for the process of soil being carried away by water or wind?
Erosion
ExplanationErosion removes soil through water or wind action.
#5
What is the term for the process of a species disappearing from its native habitat?
Extinction
ExplanationExtinction occurs when a species no longer exists in its natural habitat.
#6
What is the term for the process of soil particles being carried away by water?
Erosion
ExplanationErosion transports soil particles through water movement.
#7
What is the term for the release of harmful substances into the environment as a result of human activities?
Pollution
ExplanationPollution results from human activities releasing harmful substances into the environment.
#8
What is the main factor contributing to coral bleaching?
Ocean acidification
ExplanationOcean acidification weakens coral, leading to bleaching.
#9
Which of the following is NOT a consequence of eutrophication?
Improved aquatic biodiversity
ExplanationEutrophication causes a decrease in aquatic biodiversity.
#10
Which of the following pollutants primarily contributes to acid rain?
Sulfur dioxide
ExplanationSulfur dioxide reacts with water vapor to form acid rain.
#11
Which of the following is a consequence of ocean acidification?
Weakened shells of marine organisms
ExplanationAcidification makes it harder for marine organisms to build strong shells.
#12
What is the primary source of methane emissions in the atmosphere?
Agricultural activities
ExplanationMethane is released from livestock and agricultural processes.
#13
Which of the following pollutants is a major component of smog?
Ozone
ExplanationOzone is a key component of photochemical smog.
#14
Which of the following is NOT a consequence of air pollution?
Increased crop yields
ExplanationAir pollution can decrease crop yields due to contamination.
#15
What is the term for the process by which soil becomes less fertile due to various factors including agriculture and deforestation?
Degradation
ExplanationSoil degradation results in reduced fertility.
#16
Which of the following is NOT a consequence of habitat destruction?
Increased wildlife population
ExplanationHabitat destruction decreases wildlife populations.
#17
Which of the following pollutants is responsible for the thinning of the ozone layer?
Chlorofluorocarbons (CFCs)
ExplanationCFCs break down ozone molecules in the stratosphere.
#18
Which of the following pollutants primarily contributes to the formation of ground-level ozone?
Nitrogen oxides
ExplanationNitrogen oxides react with volatile organic compounds to form ground-level ozone.