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Hazard Identification : Each United Nations hazard class (with the exception of class 9) has a distinctive diamond shaped label bearing a pictogram for quick hazard recognition. Figure gives a colour chart for all the classes and subclasses.
Each label has a characteristic background colour. These colours convey the nature of different chemical substances as given below.
Colour Nature
Orange Explosive
Red Flammable
Blue Water reactive
Yellow Oxidiser
White Toxic or Infectious
White or Yellow and White Radioactive
Black and White Corrosive
All the classes are discussed briefly in the following paragraphs.
Mercury: Mercury, the planet nearest to the Sun, has long remained a mysterious body. Because .of the Sun's glare, it is difficult to see it clearly all the mare so becau
Q.What is soil erosion? The blowing away or washing away of land surface by wind or water is known as soil erosion.
find maximum angle for which the light suffers tir at vertical surface
#question.I AM TRAYING TO DO A SCIENCE PROJECT FOR 7TH GRADE BUT I DONT KNOW WHAT SHOULD I DO ?
What are decomposers in a temperate deciduous forest? In the Deciduous Forest, many decomposers that are living there contain fungi, bacteria, and yes, even worms.
Why did the continents spread apart? This is because of the heat generated from the earth's interior and earthquakes - the convection currents deep within the earth due to the
Deductive logic: Deductive logic may be considered as the opposite of induction. Here the reasoning is more direct. If we know a statement about a whole class of objects, ph
how is metal tyre fitted onthe wheel of bullock cart
Calculate the power of a light bulb that uses 36J of electrical energy in 6 seconds.
What is a chemical compound? By definition, a compound is a substance in which two or more different elements have combined. There are millions of examples of compounds all aro
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