Help please (this is the reading subject but they don’t have it on here)

Find the area of shaded region z=-0.89

Why do businesses rely more on teamwork in today’s business environment? a. teams need fewer instructions. b. teams facilitate learning. c. teams create a harmonious environment at the workplace. d. the team’s collective output is greater than the total of each individual’s output. e. teams require lesser supervision

Summarize the work of famous environmental scientists of the past.