The majority of water found on Earth is:

$a.$ice

$b.$water vapor

$c.$fresh water

$d.$salt water

Water, which covers $78$percent of the Earth's surface and is required for all life processes, is a vital component of the planet. Water flow and storage take place in the hydrosphere region and can take many different forms. Evaporation and sublimation, condensation and precipitation, subterranean water flow, surface runoff, and streamflow are the five key phases in the water cycle that produce diverse kinds of water.

Ice is a type of freshwater water that makes up around $1.7$percent of the total amount of water on the planet.

When the water cycle evaporates, water vapor is produced. It condenses and returns to the earth in the form of rain. They do not make up the majority of the water on the planet.

Freshwater is salt-free and suitable for consumption by most animals and plants. Freshwater makes up only$2.5$percent of the total amount of water on the planet, with only 1% of that available for human consumption.

Hence, the incorrect answer is $a,b,c$

On Earth, there are many different types of water, with saltwater having the largest amount at$97.5\%$. Oceans, lakes, and seas are all home to them. They are unfit for human consumption, and only a few creatures can survive in this type of water.