Answer:
There are four main types of chromatography. These are Liquid Chromatography, Gas Chromatography, Thin-Layer Chromatography and Paper Chromatography. Liquid Chromatography is used in the world to test water samples to look for pollution in lakes and rivers.
The Gaia Theory was proposed. By the british.
Answer:
I wasto ang pagtapon ng basura, kailangang linisin ang kapaligiran, kailangan din nating alagaan ang ating mga tanim.
