Ninjutsu is the use of chakra usually in combination with handseals to perform techniques. They can be offensive attacks, deffensive and can be used to summon things.
Elemental ninjutsu is ninjutsu involving molding ones chakra to a certain element such as fire. Or manipulating pre-existing elements such as the earth to produce techniques.
Chakra is a type of energy present within the body in the chakra network which circulates similar to blood. Chakra is the basis of the majority of jutsu in the ninja world. A ninja is able to mold their chakra via hand seals or without to bring forth the desired chakra in a specific way to produce a technique.
Doton is the manipulation of the earth in ones jutsu. Doton can be considered the most versatile of ninjutsu. it can allow for spikes to come out of the ground for surprise attacks. allow for walls to be created to make excellent defences and even allow for underground travel. In addition to this users with higher skill can change the hardness of the earth to ones advantage.
advantages
-available almost everywhere within the earth
-versatile
-manipulation of the terrain
-great for surprises
-excellent support, (example, raising a team-mate to safety)
Disadvantages
-raiton can break through
-can be slower than other elements
-usually does not reach as high in the air as other jutsus.
sorry for late reply i went to go eat dinner