Question

2. Living things can weather and erode the Earth. Which statement is true?

A Lichen and plant roots secrete chemicals which cause chemical changes in rocks and cause physical
weathering
B. Lichen secrete chemicals which cause chemical changes in rocks and cause chemical weathering, but
plant roots split rocks apart through physical (mechanical) weathering,
C. All living things cause chemical weathering.
D. Living things only cause mechanical weathering

Answer 1

Answer: B

Step-by-step explanation:

Lichen secrete the chemicals, but plant roots don't secrete chemicals, they dig their roots through the rocks.