Question

chech weather the given fraction are equivalent fraction (with steps)a)36/112,18/56b)105/85,30/60c)21/39,7/13​

Answer 1

Step-by-step explanation:

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.