Final answer:
A consistent and sufficiently distributed pattern of precipitation throughout the year, with annual precipitation ranging from 25 cm to 75 cm (9.8-29.5 in), supports plant life, particularly in temperate grasslands. Climate change may disrupt this balance by altering precipitation patterns and increasing storm severity.
Step-by-step explanation:
The pattern of precipitation that should support plant life all year long must be both consistent and sufficiently distributed throughout the different seasons. For vegetation like grasses in temperate grasslands, annual precipitation ranging from 25 cm to 75 cm (9.8-29.5 in) supports dense growth, with survival mechanisms such as extensive root systems that compensate for less frequent precipitation. Moreover, these grasslands have adapted to seasonal variations with significant growth in spring, summer, and fall when temperatures are warm enough for growth and water is more available.
However, changes in global climate patterns can disrupt this balance. Climate change is predicted to affect precipitation and storm events significantly. These impacts could result in more severe storms, shifts in storm tracks, and changes in the form of precipitation, all of which could impact plant life's ability to thrive throughout the year.