Question

please solve this question​

Answer 1

$\huge\mathbb{A~N~S~W~E~R}$$\huge\mathbb{A~N~S~W~E~R}$$\huge\mathbb{A~N~S~W~E~R}$$\huge\mathbb{A~N~S~W~E~R}$

Answer 2

• IN UNDERGROUND WATER THE LENGTH OF FOAM BE LONGEST
• BECAUSE IN 2 TESTUBES WE HABE TAKEN DISTILLED WATER.ITS JUST FOR EXPLAINATION

MAIN REASON

• BECAUSE IN DISTILLED WATER THE FOAM WONT FOAM LONGEST BECAUSE IT IS PURIFIED WATER..
• AND UNDERGROUND WATER IS SO,ETHING DIFFERENT SO THE SUBSTANCE WE HAVE ADDED REACTS MORE WITH UNDERGROUND WATER