Alright...very good.
Let us begin now.
Hmm...-looks around- Why not take a seat on one of the rocks over there and do your best to sense your surroundings while meditating upon it? Use chakra if necessary.
Earth is an element that can come in a hard form witch can be used for defence like useing it to block an enemy attack of ofenceivly by molding it into wepons or creating spikes to empale the person under attack.
earth is weak against lightning because say it was raining outsideand lightning struck the earth there wold be a big hole in the ground or if you wher in a battle and you created a wall made of the earth and your oponent useis Chidori the wall wold breack.
water because lets say you creat a wall of earth then some one uses a water style jutsu that wold turn the earth into mud witch helps with outher jutsu. in some cases earth can soak up water.