Below are the choices:
<span>a. creating an online chat group for asking questions and posting solutions
b. establishing a standard method for delivering the results to the teacher
c. offering a wide variety of rain gauges for everyone to choose from
d. using a standard unit of measure for the duration of the study
</span>
the answer is D. I hope it helps.
Answer:
A substance that undergoes a change during a reaction.
Explanation:
a).Jill and Tom both have recessive traits for color-blindness. There is a 25% chance of their children being color-blind
b) she inherited the X chromosome from both Jill and Tom
Of about 3-4 days in most cases. With severe damage it can take up to 30.
