Environmental Awareness Flashcards
6 cards from real NEDP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Environmental Awareness flashcards as text
What is the greenhouse effect?
Answer: The trapping of heat by gases in the atmosphere, warming Earth's surface
Greenhouse gases (CO₂, methane) trap solar heat in the atmosphere, keeping Earth warm — but excess gases intensify this, causing climate change.
Which of the following is an example of a renewable energy source?
Answer: Solar power
Solar power is renewable because the sun's energy is replenished naturally and will not run out on human timescales.
What does 'biodiversity' mean?
Answer: The variety of living species in a given ecosystem or on Earth as a whole
Biodiversity refers to the variety of life — species diversity, genetic diversity, and ecosystem diversity — which supports ecological stability.
What is the correct recycling hierarchy, from most to least preferred option?
Answer: Reduce, Reuse, Recycle
The '3 Rs' hierarchy prioritizes reducing consumption first, then reusing items, and recycling only as a last resort — all better than landfill.
What is 'deforestation' and why is it an environmental concern?
Answer: The large-scale removal of forests, which reduces carbon absorption, destroys habitats, and contributes to climate change
Deforestation removes trees that absorb CO₂, displaces wildlife, erodes soil, and disrupts water cycles, contributing to climate change.
What is a 'carbon footprint'?
Answer: The total amount of greenhouse gases produced by an individual, organization, or activity
A carbon footprint measures total greenhouse gas emissions (in CO₂ equivalent) from all activities — transportation, energy use, food, etc.