Answer:
Benchmarks
Explanation:
A benchmark is simply an operation or a test to check the performance of something (in this case, a project) to evaluate if it is ready to be used.
Benchmarks are important because they are needed to see if a project is ready and set to be launched.
Atmosphere of the early earth + lighting = paleolightning
Answer:
guard cells
Explanation:
they control the opening and closing of the stomata
