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- Dictionaryrainbow/ˈreɪnbəʊ/
noun
- 1. an arch of colours visible in the sky, caused by the refraction and dispersion of the sun's light by rain or other water droplets in the atmosphere. The colours of the rainbow are generally said to be red, orange, yellow, green, blue, indigo, and violet: "all the colours of the rainbow"
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Oct 19, 2023 · Vocabulary. A rainbow is a multicolored arc made by light striking water droplets. The most familiar type rainbow is produced when sunlight strikes raindrops in front of a viewer at a precise angle (42 degrees). Rainbows can also be viewed around fog, sea spray, or waterfalls.
Oct 19, 2023 · Visible light waves are the only wavelengths of the electromagnetic spectrum that humans can see. The different wavelengths of visible light are seen as the colors of the rainbow: red, orange, yellow, green, blue, indigo, and violet.
Oct 19, 2023 · Rain is liquid precipitation: water falling from the sky. Raindrops fall to Earth when clouds become saturated, or filled, with water droplets. Millions of water droplets bump into each other as they gather in a cloud. When a small water droplet bumps into a bigger one, it condenses, or combines, with the larger one.
Oct 19, 2023 · Vocabulary. A rain shadow is a patch of land that has been forced to become a desert because mountain ranges blocked all plant-growing, rainy weather. On one side of the mountain, wet weather systems drop rain and snow.
Oct 19, 2023 · Carbon is an essential element for all life forms on Earth. Whether these life forms take in carbon to help manufacture food or release carbon as part of respiration, the intake and output of carbon is a component of all plant and animal life. Carbon is in a constant state of movement from place to place.
Oct 19, 2021 · The terms for the community of people that encompasses people who are lesbian, gay, bisexual, transgender, queer, intersex, and asexual are as broad as that community itself: As society’s understanding, recognition, and inclusion of diverse sexual identities and gender expressions has grown, so has its acronym.
Oct 7, 2024 · Roughly half of the world’s known species can be found in tropical rainforests, with as many as 400 species of trees present in a single hectare. Tropical rainforests are some of the most biologically diverse terrestrial ecosystems in the world. The Amazon rainforest is the world’s largest tropical rainforest.
Oct 19, 2023 · Driven by logging, mining, agriculture, and ranching, deforestation is endangering rainforests worldwide. About 17 percent of the Amazonian rainforest has been destroyed over the past 50 years, and losses recently have been on the rise. Tropical rainforest now covers about six percent of Earth's land surface.
Sep 24, 2019 · Washington DC September 24, 2019. The Campaign for Nature’s goal to protect 30 percent of Earth’s land and ocean is rooted in the benefits that protected areas provide for biodiversity and the associated ecosystem services.
Oct 19, 2023 · Vocabulary. The taiga is a forest of the cold, subarctic region. The subarctic is an area of the Northern Hemisphere that lies just south of the Arctic Circle. The taiga lies between the tundra to the north and temperate forests to the south. Alaska, Canada, Scandinavia, and Siberia have taigas.
