How can i increase my memory to remember facts in such as in biology, history etc.?

Study actively: The harder you make your brain work to relate and group facts, the more likely you'll be to remember them. Some things to try: (a) create visual representations of the facts. (b) use vivid imagery and make up ridiculous or funny stories using the facts. (c) create acronyms using the facts or make up rhymes/songs with them. (d) keep track of which facts you know and don't. (e) google "mnemonics.".