You can't. Pokemon Emerald is just like Sapphire and ruby.
You get a diploma in each, in emerald you can get a johto starter from prof birch and that's it.
Pokemon 152 is chikorita, unfortuntly to obtain one other then from heartgold/soulsilver, Is to beat Pokemon Emerald, all Pokemon cuaght, and then you go to prof. Birch and he'll give u the choice of the 3 jhoto starters
He doesnt appear in Hoenn as far as I am aware. (The only Main Generation games which he doesnt)
After beating the Elite Four, go to a Pokemon Center and Trade a Charizard from Fire Red. you can get a Typhlosion by collecting 200 types of Pokemon then going to prof. birch :)
Prof cozmo in fallarbor town will take the meteorite he gives you a TM.
In emerald you can fly (or walk) to fallabor town and there you will find prof. cozmo's house and he will trade you a TM for your metorite
Prof Cozmo is the person who lost the meteroite he lives in fallarbor town please note he is in a house not a lab.
In fallarbor town its a house.
Prof Cozmo in fallarbor town.
Prof. Cosmo isn't in Emerald.
You can't. Pokemon Emerald is just like Sapphire and ruby.
in Fallarbor town go left until you see the Pokemon center go down and you'll see a Pokemart go left until you see a house with two smokestack looking things and go inside you see two people ones a girl the other Professor Cozmo
Go up the cable car if you can't ride it that means you must go to fallarbor town and talk to prof cozmo.
After giving Prof. Cozmo the meteor, he will analyze it and give you a reward in return. You can then continue exploring and completing other quests in Destiny 2.
torchic,treeko,mudkip
save prof. birch