Answer:
I think it would effect the amount of predators and prey in an ecosystem. I could be wrong however.
I would say the names of people and places.
-you should start watching movies in english with a subtitle of your language
-talk to english friends or make english friends
-try to talk in english all the time
-read english books
-go to the internet and learn vocabulary and grammar
-learn to use a english dictionary
-use index cards write a word in english and on the other side write the word in your language and practice with yourself
-hire an english tutor
-ask a friend to teach you english if she/he knows
and there are many more ways to learn english, but here are a few :D
