How are rivers filled?

How are rivers filled? A river forms from water moving from a higher elevation to a lower elevation, all due to gravity. When rain falls on the land, it either seeps into the ground or becomes runoff, which flows downhill into rivers and lakes, on its journey towards the seas. Rivers eventually end up flowing […]

What are the 3 largest birds in North America?

What are the 3 largest birds in North America? Largest Birds of the Americas: Land & Sea, Flight & Flightless Greater Rhea – Largest Flightless Bird in the Americas. Wandering Albatross – Largest Seabird in the Americas (and World) California and Andean Condors – Largest Flying Land Birds in the Americas. Harpy Eagle: Largest Hunting […]

Does light refract in a rainbow?

Does light refract in a rainbow? A rainbow is an optical illusion—it does not actually exist in a specific spot in the sky. Rainbows are the result of the refraction and reflection of light. Both refraction and reflection are phenomena that involve a change in a wave’s direction. What refracts white light into a rainbow? […]

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