Hi, what is this sparkly/reflective rock found in flooring? not a school question, just curiosity.

Litmus paper is made from water-soluble dyes which are extracted from lichens. this paper is used as an acid-base indicator. which of these common household substances would turn blue litmus paper red? a) bleach b) lye c) soap d) vinegar

Explain which atom l or m is more stable and why

How does a hydroelectric power plant converts energy into energy.