Final answer:
The question concerns the pH tolerance range of warm-season grass, which is a topic in environmental science. The pH scale, crucial for understanding soil conditions for plant growth, ranges from 0 (acidic) to 14 (basic), with 7 being neutral. Warm-season grasses thrive in slightly acidic to mildly basic soils, typically tolerating pH levels from 6.5 to 7.2.
Step-by-step explanation:
The statement 'Warm-Season grass can't tolerate 6.5 - 7.2 pH' pertains to environmental science, specifically to soil pH conditions suitable for plant growth. The pH scale measures how acidic or basic a substance is. The pH scale ranges from 0 to 14, with 7 being neutral. Values below 7 indicate acidity and values above 7 indicate basicity, or alkalinity. Warm-season grass refers to a type of grass that grows primarily during the warm parts of the year like late spring and summer.
Grasses, along with other plants, have preferred pH ranges for optimal growth. This tolerance range often falls around neutral, and slightly acidic to slightly basic conditions. Warm-season grasses have a pH tolerance that allows them to grow in soil that ranges from slightly acidic to mildly basic. Environmental science explores these aspects, among others, to understand how various environmental factors affect plant life. What is considered a 'normal rainwater' pH value, between 5 and 6, due to the dissolved CO₂ forming carbonic acid, is critical knowledge for understanding environmental impact on vegetation.