Among the option given below, the most appropriate SI base unit for measuring mass is Gram. Thus, the correct option is B.
An SI unit may be defined as a form of the metric system that is utilized universally as a standard for measurements. It is an international system of units. The expanded form of the SI unit is Systeme International.
The exact SI base unit for measuring mass is the kilogram, kg. But it is not mentioned in the options. So, the most appropriate SI base unit for measuring mass is Gram.
Ampere is the SI base unit for measuring the electric current. A Meter (m) is the SI base unit for measuring length. A Pound is the international standard symbol used as a unit of mass and i.e. lb.
Therefore, among the option given below, the most appropriate SI base unit for measuring mass is Gram. Thus, the correct option is B.
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c. UV radiation
b. X-rays
d. Infra-red radiation
The ozone layer absorbs UV (ultraviolet) radiation. The answer is letter C. the ozone layer is able to oxidize the electros and photons in the UV rays so that the light that can pass through can be not harmful to humans.
A material that can be represented by a chemical formula is a chemical compound.
Chemical compounds are substances made up of two or more different elements that are chemically bonded together in a specific arrangement. The elements in a compound can be either metal or nonmetal elements, or a combination of both.
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A chemical compound is a substance made up of two or more different elements that are chemically bonded together. The chemical formula of a compound provides information about the types and numbers of atoms in a molecule of the compound.
For example, water is a chemical compound represented by the formula H2O, which tells us that each molecule of water contains two hydrogen atoms (H) and one oxygen atom (O) bonded together.
Chemical formulas are important tools for chemists to communicate information about the composition and structure of compounds. They allow scientists to predict how compounds will react and to design new compounds with desired properties.
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b. line
c. spectrum
d. category
A product line is a group of products offered by a firm that are closely related to each other, either in terms of how they work, or the customers they serve. An example is the production of wine, beer, spirit, whiskey, vodka. These products may be different but they are related because they are all alcohol liquor.
b. oil
c. natural gas
d. uranium
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Answer:The balloon steals electrons from your hair, leaving the hair positively charged, and the balloon negatively charged. It causes the hair to be apart from each other, because they have the same charge. Glass has a weaker hold on electrons, and silk absorbs the lost electrons.