A line perpendicular to the number
line is drawn through the point Q.
Point R is at unit distance from Q on
the line.
x Right angled ' ORQ is obtained by
drawing seg OR
Answers
Answer:
Since irrational numbers are a subset of the real numbers, and real numbers can be represented on a number line, one might assume that each irrational number has a "specific" location on the number line. NOPE! The best we can do to locate irrational numbers on a number line is to "estimate" their locations.
Answer:
EXPERIMENT TO PROVE OXYGEN IS NECESSARY FOR GERMINATION - DEFINITION
Aim: To prove that oxygen is necessary for germination.
Apparatus: Two conical flask marked A and B, seeds of pea, water, cotton wool, pyrogallic acid, test tubes.
Procedure: Take two conical flask with a cork and mark them A and B respectively.Place a wet cotton wool in each flask with some soaked Pea seeds. Pyrogallic acid absorbs oxygen so a test tube of in flask B in such a way that the cemical dosent drop in the flask. In flask A hang a test tube of plain water.
Observation: The seeds in flask A germinate because of presence of oxygen and seeds in flask B do not germinate because pyrogallic acid absorbs oxygen.
Result: Oxygen is necessary for germination.