global climate patterns are determined by sunlight and the plants movement in space. Produces temperature variations, air movement, and water evaporations. REquired by autotrophic plants for photosynthesis.
hydrogen concentration in the soil affects ability of plant roots to take up certain minerals and it can also affect benegicial fungi and bacteria. Limstone soils are basic, high sulfur soils are acidic. high pH=low acidity
locations where animals gather to mate. Examples: alligators need to excavate pits, many bird species migrate to particular locations, swallows return to San Juan Capistrano in Cali, and Monarch butterflies gather in forests in mexico