243 questions and answers — page 3 of 13
📕 Print the encyclopedia / PDFLearn about Environment Quizzes · 🎲 Environment Quizzes Challenge · Nature Guardians
Answer: The variety of living things, their species, and their environments
💡 Biodiversity includes the variety of species, genes, and environments, and the greater it is, the stronger an environment is against change.
Answer: The International Union for Conservation of Nature (IUCN)
💡 The International Union for Conservation of Nature classifies organisms by their risk of extinction, listing threatened species in categories, the most severe being "Critically Endangered."
Answer: By breeding it in captivity and then releasing it into reserves
💡 The oryx was bred in zoos and specialized centers and then released into reserves, including the 'Uruq Bani Ma'arid Reserve, becoming a successful example of saving a species.
Answer: The Arabian leopard
💡 The Arabian leopard is one of the rarest big cats in the world, and the Kingdom is breeding it in captivity to save it from extinction and return it to its mountain habitats.
Answer: Riyadh
💡 The King Abdulaziz Royal Reserve lies north of Riyadh and includes famous rawdahs (green meadows), such as Rawdat Khuraim.
Answer: 10 billion trees
💡 The initiative aims to plant 10 billion trees across the Kingdom over the coming decades to rehabilitate vast areas of land.
Answer: 2021
💡 Crown Prince Mohammed bin Salman announced the Saudi Green Initiative in 2021 to increase vegetation cover, reduce emissions, and protect the environment.
Answer: They block drifting sand and reduce dust
💡 Trees slow down the wind, reducing drifting sand and dust, and they also cool the air and provide shade.
Answer: Land degradation in dry areas until it loses its fertility and plants
💡 Desertification does not just mean natural deserts expanding; it means land losing its ability to produce because of drought and human activity.
Answer: Coal
💡 Coal formed from plant remains over millions of years and does not renew as fast as we use it, while the sun and wind never run out.
Answer: The Paris Agreement
💡 In Paris in 2015, countries agreed to keep global warming well below 2 degrees Celsius compared with pre-industrial times, and to strive to limit it to 1.5 degrees.
Answer: The Montreal Protocol
💡 The Montreal Protocol was signed in 1987 and is considered one of the most successful environmental agreements, because the ozone layer began to recover after it.
Answer: Chlorofluorocarbons (CFCs)
💡 These compounds rise high into the atmosphere and release chlorine, which breaks apart ozone molecules, so their use was banned.
Answer: The stratosphere
💡 Most ozone is in the stratosphere, the layer above the one we live in, where weather happens.
Answer: It absorbs most of the harmful ultraviolet rays coming from the sun
💡 The ozone layer protects living things from most of the ultraviolet rays that burn skin and harm eyes and plants.
Answer: Much colder and hard to live on
💡 Atmospheric gases trap some of the heat, keeping the Earth warm and fit for life; the problem is their increase due to human activity.
Answer: Nitrogen
💡 Nitrogen makes up about 78% of the air and oxygen about 21%, while the rest is small amounts of gases, including carbon dioxide.
Answer: Methane
💡 Bacteria that live without oxygen produce methane in flooded rice fields, in livestock stomachs, and in buried waste.
Answer: Carbon dioxide
💡 Burning coal, oil, and gas releases huge amounts of carbon dioxide, which traps heat in the atmosphere.
Answer: A low cloud touching the Earth's surface
💡 Fog is tiny water droplets suspended in the air near the ground; it is really a very low cloud.
