Independent random samples selected from two normal populations produced the sample means and standard deviations shown to the right. a. Assuming equal variances, conduct the H0 test against Ha using a = 0.05.
b. Find and interpret the 95% confidence interval.

A. It provides carbon monoxide to help plants grow.

Step-by-step explanation:

The only incorrect option is that carbon monoxide is required by plant, but the correct statement would be carbon dioxide is required my plants, for its growth, which helps to perform the process of photosynthesis.

The rest of the statements are correct.

As, the atmosphere acts as a blanket, which protects the earth from the harmful rays of the sun.

And, atmosphere constitute of various gases, which enables the living organisms to breath.

And, the atmosphere protects from any meteors entering from space.