#1
Which of the following is a greenhouse gas responsible for global warming?
Methane
ExplanationMethane is a potent greenhouse gas contributing to global warming.
#2
Which of the following is a non-renewable energy source?
Natural gas
ExplanationNatural gas is a non-renewable fossil fuel.
#3
What is the term for the loss of a species from an ecosystem?
Extinction
ExplanationExtinction refers to the disappearance of a species from its habitat.
#4
What is the primary source of water pollution?
All of the above
ExplanationVarious sources contribute to water pollution, including industrial, agricultural, and domestic activities.
#5
What is the term for the process of converting waste materials into reusable materials?
Recycling
ExplanationRecycling involves converting waste into reusable products to reduce resource consumption.
#6
What is the term for the gradual increase in the Earth's average temperature due to human activities?
Climate change
ExplanationClimate change refers to long-term shifts in global weather patterns due to human-induced greenhouse gas emissions.
#7
Which of the following is NOT a greenhouse gas?
Oxygen
ExplanationOxygen is not a greenhouse gas; it's essential for respiration.
#8
What is the primary cause of coral bleaching?
Global warming
ExplanationGlobal warming causes coral bleaching by stressing coral reefs.
#9
What is the term for the process by which plants release water vapor into the atmosphere?
Transpiration
ExplanationTranspiration is the process of water release from plants into the atmosphere.
#10
What is the main cause of the hole in the ozone layer?
Chlorofluorocarbons (CFCs)
ExplanationChlorofluorocarbons (CFCs) are synthetic compounds responsible for ozone depletion.
#11
Which of the following is a major contributor to soil erosion?
Overgrazing
ExplanationOvergrazing leads to soil erosion by removing vegetation.
#12
Which of the following is a consequence of deforestation?
Loss of habitat
ExplanationDeforestation results in habitat destruction for many species.
#13
Which of the following is a consequence of ocean acidification?
Decreased biodiversity
ExplanationOcean acidification threatens marine biodiversity by disrupting ecosystems.
#14
Which of the following is a characteristic of an invasive species?
It rapidly spreads and outcompetes native species
ExplanationInvasive species rapidly multiply, displacing native species and disrupting ecosystems.
#15
Which of the following is NOT a method of reducing carbon footprint?
Increasing air travel
ExplanationIncreasing air travel actually increases carbon footprint.
#16
What is the term for the phenomenon where a small change in one part of an ecosystem can have large effects on other parts of the ecosystem?
Trophic cascade
ExplanationTrophic cascade refers to the cascading effects of changes in one trophic level on others within an ecosystem.