PLEASE HELPPP Which of these support the statement that we must protect biodiversity because it affects the amount of resources we can use sustainably?

A. Biodiversity decreases ecosystem productivity because different species use resources in different ways.

B. A greater number of only a few species increases ecosystem resiliency and an ecosystem's ability to resist disturbance.

C. A variety of many different species increases ecosystem health by concentrating human-made toxins and poisons in water.

D. Biodiversity maintains ecosystem health by recycling and storing nutrients, maintaining water quality, and stabilizing climate.

Sparta faces threats from without and within the city-state who posed these threats.

What ideas, institution, and causes became the focal points of chinese and islamic resistance respectively to the west in the latter half of 19th century and the first decades of the 20th

Javier is considering two options for college. option a: complete the first two years of schooling at a community college and then transfer to a university. option b: complete all four years of schooling at the university. community college financial analysis costs per year financial aid package per year tuition & fees scholarships & grants $3,000 $1,000 room & board $1,000 university financial analysis costs per year financial aid package per year tuition & fees scholarships & grants $10,000 $15,000 room & board work-study $11,500 $4,000 which statement about the cost of the options is true? option b will save him $1,000. option b will save him $2,000. option a will save him $14,000. option a will save him $17,500.