1) Which of the following is not a source of natural light? a) Sun b) All of the above c) Stars d) LED lights 2) Which type of light can potentially disrupt our sleep patterns? a) Natural light b) Artificial light c) Both d) Neither 3) Which of the following is a type of artificial light? a) Sunlight b) Candlelight c) LED light d) Moonlight 4) What is the main source of natural light on Earth? a) LED bulbs b) Fluorescent bulbs c) The Sun d) Fireflies 5) Which of the following is an environmental impact of excessive artificial light usage, also known as light pollution? a) Reduced visibility of stars b) Disruption of ecosystems and wildlife c) Wasted energy d) All of the above 6) What can we do to reduce our dependence on artificial light? a) Use more candles b) Maximise natural light in our homes c) Sleep during the day d) Both a and b 7) Which of the following is an advantage of artificial light? a) It can be used anytime, regardless of weather conditions b) It doesn't impact our sleep patterns c) It's always better for our eyes than natural light d) It doesn't consume energy 8) Which type of light is generally considered better for studying or reading? a) Natural light b) Artificial light c) Both are the same d) Neither 9) What is the effect of blue light, commonly found in artificial light sources like computer screens and smartphones? a) It helps us sleep better b) It can potentially disrupt our sleep patterns c) It improves our mood d) It reduces our energy consumption 10) Which of the following artificial light sources is most energy efficient? a) Incandescent b) Halogen c) LED d) Fluorescent

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