Hey there! I'm happy to help!
The lithosphere is all of the things under the Earth's surface. This includes some plants and animals, but not all of them.
The hydrosphere is all of the things in the water on Earth's surface. Once again, this includes many plants and animals, but not every single one.
The atmosphere is all of the things in the air or the sky of Earth. You guessed it, this includes many plants and animals, but not every single one.
The biosphere includes all living plants and animals on Earth's surface. The root word "bio" means life, so the biosphere is going to have to do with biology, biodiversity, biography (if you're a human), biochemistry, etc.
Have a wonderful day and keep on learning! :D