All organisms need water to survive. water helps homeostasis of an organism's body and acts as a universal solvent for the body's pH.
Air
Here on Earth, those would be water and air.
Abiotic and biotic components influence each other. For instance, temperature (abiotic factor) can make plants (biotic factor) reproduce more or reproduce less. Also water, an abiotic factor, has an effect on how animals, a biotic factor, survive in certain areas of the world. In Africa, for instance, the migratory patterns of most herbivores are based where water is the most plentiful. When the dry season comes, the animals must move to where the food and water are most abundant. (Some of this behavior also comes from instinct.)
Well abiotic means without life, so that would be.. the water's temperature, the substances in it..
It's difficult to pinpoint the single most important factor as they all interact to influence climate. However, if I had to choose, I would say solar radiation is the most fundamental factor as it drives the Earth's climate system.
The most important factor is water. Water itself is abiotic as it is not alive.
Water
Air
The low light intensity of the forest affects the growth of pine trees. The light intensity is an abiotic factor, the growth of pine trees is the biotic factor. This is your answer.
contaminated water supply in the region
Here on Earth, those would be water and air.
The abiotic factor most important for the growth of dandelions is the level of light intensity. I know this for a fact because I have recently used a quadrat to estimate the abundance of dandelions along a metre transect in Biology, and the abundance of dandelions were greater in the areas with most light. I hope this helps :)
they are important because with out them organisms can not survive a day
In some deserts sand is the most visible abiotic factor. In others it might be gravel, rock or soil.
The most important factor of making Mesopotamia's farmland fertile was water.
I am doing some school work on these types of things and water is an abiotic factor of an ecosystem. It gives a source of drink, bathing, and hiding (fish). There are many more! Those are some of the most important.
Air APEX;)