D, A
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Force is mass × acceleration and it is measured in Newtons.
Mass = 3kg
Acceleration = 9m/s²
F = ma
F = 3×9
F = 27Newtons.
Northam Warren created the first commercial version of LIQUID NAIL POLISH in 1917.
As the name implies, the LIQUID NAIL POLISH is used on finger nails, to make it look more attractive and beautiful.
This was after he created the fingernail cuticle remover and nail polish in 1911, and nail tints in 1914.
D) is the answer. The plants take in sunlight through the process of photosynthesis. During that process the chloroplasts make sugars while releasing oxygen into the air. All plant cells contain chloroplasts.
Soil develops in horizontal layers.If we cut vertically into the earth ,the different layers become visible.A soil profile is a sample taken from the surface down through the soil . The horizontal layers of soil are called soil Horizons.
