Chemical weathering and mechanical weathering can be influenced by plants. Plants contribute to mechanical weathering when their roots growth through cracks and crevasses in soil or rock. Overtime the roots will break rocks apart. Some plants produce and secrete organic acids that can change the chemical composition of rocks causing them to weather. Mechanical weathering breaks rocks into smaller pieces while chemical weathering changes the composition of the rocks.
The correct definition of biodiversity is the following: Biodiversity is the variance of plant and animal species within an environment. Correct answer: C
The term biodiversity denotes the variety of life on Earth: variety of flora and fauna. It includes species, genetic, and ecological diversity. Without biodiversity the life on earth would be impossible.
The following land-forms are listed from lowest elevation to highest elevation, along with elevation measurements in feet.
Turner Falls (77 feet)
Mount Scott (2, 464 feet)
Rich Mountain (4,040 feet)
Black Mesa (5,705 feet)
