4. Answer in brief:
4.1 By how much force does earth attract a body of mass 1 kilogram?
4.2 Some metals are arranged in the decreasing order of their tendency to liberate hydrogen dilute solution of an acid -- Na, Fe.).CuAu. From this piece of information, idet (H electropositive metal among those given here.
4.3 Which cell is present in retina that helps in vision in mild light?
4.4 Write the name of the enzyme in potato which decomposes hydrogen peroxide into water and oxygen.
Answers
Answer:
4.1 = On Earth, the gravitational field strength (g) is 10 N/kg which means that the mass of the Earth attracts every 1 kilogram mass with a weight force of 10 newtons.
4.2 = Na(sodium) It's most reactive too.
4.3 = The primary light-sensing cells in the retina are the photoreceptor cells, which are of two types: rods and cones. Rods function mainly in dim light and provide black-and-white vision.
4.4 = The enzyme catalase brings about the reaction by which hydrogen peroxide is decomposed to water and oxygen.
Answer:
4.1 = On Earth, the gravitational field strength (g) is 10 N/kg which means that the mass of the Earth attracts every 1 kilogram mass with a weight force of 10 newtons.
4.2 = Na(sodium) It's most reactive too.
4.3 = The primary light-sensing cells in the retina are the photoreceptor cells, which are of two types: rods and cones. Rods function mainly in dim light and provide black-and-white vision.
4.4 = The enzyme catalase brings about the reaction by which hydrogen peroxide is decomposed to water and oxygen.
Explanation:
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