How is ozone important for us?

How is ozone important for us? Why is Ozone Layer important? Ozone protects the Earth from harmful ultraviolet (UV) rays from the Sun. Without the Ozone layer in the atmosphere, life on Earth would be very difficult. Plants cannot live and grow in heavy ultraviolet radiation, nor can the planktons that serve as food for […]

What pattern do most stars follow?

What pattern do most stars follow? Stars rise in the northeast and set in the northwest, moving in counter-clockwise circles around a point that’s high above the northern horizon: Half-hour time exposure facing north and slightly west, from the same location as the previous three photos. Do Stars patterns? The patterns of stars seen in […]

What produces most lift at low speed?

What produces most lift at low speed? A: The straight wing is found on a lot of low-speed airplanes. This kind of wing extends from the body of the airplane at right angles. These wings provide good lift at low speeds, and they are structurally efficient, but are not suited to high speeds. Which airfoil […]

Are noble gases each a different color?

Are noble gases each a different color? Each of the noble gasses glows in its own colour when exposed to high voltage; for example helium becomes pink, krypton glows yellow/green, xenon shines in lavender blue and argon in light blue. What does argon smell like? Argon has no smell. It is a colorless gas. It […]

Which force affects the movement of ship?

Which force affects the movement of ship? The main factors that affect the motion of the ship and its response are the shape, size and weight of the ship. These factors determine other important parameters such as the centre of gravity, the centre of buoyancy and the beam at the waterline. What are 4 Forces […]

Why onion has no chloroplast?

Why onion has no chloroplast? The clear epidermal cells exist in a single layer and do not contain chloroplasts, because the onion fruiting body (bulb) is used for storing energy, not photosynthesis. The vacuole is prominent and present at the center of the cell, surrounded by cytoplasm. Do plant cells have chloroplasts and mitochondria? Plant […]

What are the potential applications of gel electrophoresis?

What are the potential applications of gel electrophoresis? Applications of gel electrophoresis In the separation of DNA fragments for DNA fingerprinting to investigate crime scenes. To analyze results of polymerase chain reaction. To analyze genes associated with a particular illness. In DNA profiling for taxonomy studies to distinguish different species. What is the function of […]

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