Is pure water blue? The water is in fact not colorless; even pure water is not colorless, but has a slight blue tint to it, best seen when looking through a long column of water. The blueness in water is not caused by the scattering of light, which is responsible for the sky being blue. […]
What kind of grass grows in the tundra?
What kind of grass grows in the tundra? Grasses in the Tundra Polar Grass (Arctagrostis latifolia) Polar grass grows from sea level to 5,500 feet in elevation with two subspecies growing in different parts of the world. Ice Grass (Phippsia algida) Vahl’s Alkali Grass (Puccinellia vahliana) Cottongrass (Eriophorum callitrix) Do pine trees grow in the […]
What are the 10 components of physical fitness and their examples?
What are the 10 components of physical fitness and their examples? Knowledge is Power: 10 Physical Fitness Components Cardiovascular/Respiratory Endurance. Definition: The ability of body systems to gather, process, and deliver oxygen. Stamina. Definition: The ability of body systems to process, deliver, store, and utilize energy. Strength. Flexibility. Power. Speed. Coordination. Agility. Which fitness component […]
How do volcanologists predict volcanoes?
How do volcanologists predict volcanoes? Earthquakes. Moving magma shakes the ground, so the number and size of earthquakes increases before an eruption. A volcano that is about to erupt may produce a sequence of earthquakes. Scientists use seismographs that record the length and strength of each earthquake to try to determine if an eruption is […]
What are two ways to increase kinetic energy?
What are two ways to increase kinetic energy? If you double the mass of an object, you double the kinetic energy. If you double the speed of an object, the kinetic energy increases by four times. The word “kinetic” comes from the Greek word “kinesis” which means motion. Kinetic energy can be passed from one […]
Why do birds chirp at 2am?
What is the #1 cancer killer?
What is the #1 cancer killer? According to the American Cancer Society, lung cancer — and lung cancer caused by asbestos — is the number one killer, with 142,670 estimated deaths in 2019 alone, making it three times deadlier than breast cancer. What’s the most curable cancer? What are the most curable cancers? Breast cancer. […]
What is the difference between radar and Doppler radar?
What is the difference between radar and Doppler radar? How is Doppler different from conventional radar? Conventional radar detects the presence of dense objects (such as precipitation) in the field, while the Doppler system detects a phase shift between the outgoing and incoming signals. What does a tornado look like on Doppler radar? Meteorologists look […]
Does grass stop erosion?
Does grass stop erosion? Grasses native to your region will help build soil stability. Native grasses grow long roots that tie the topsoil and subsoil together. Buffer strips, or swathes of native species, are a great way to reduce erosion and sedimentation. An added bonus is using plants that can attract pollinators and increase biodiversity. […]
Do I need to know Physics 1 Physics 2?
Do I need to know Physics 1 Physics 2? All you need to know for Physics 1 (newtonian mechanics) is basic derivatives for velocity and acceleration as well as some integrals for force, work and some moment of inertia problems. Physics 2 requires Calc 2 because you need to know different types of integrals such […]