Answer:
Environmental scientists look for solutions to protect the environment, while chemists develop new products.
Explanation:
The last two sentences use the conjunction while meaning <em>whereas</em>, i.e. indicating a contrast. So the purpose of sentences 3 and 4 is to contrast certain things about environmental scientists and chemists. However, the fourth sentence contrasts only <u>level of education</u> required for these jobs.
The third sentence refers to <u>actual</u> <u>work</u> that environmental scientists and chemists do. Therefore, this sentence most accurately describes a way in which the jobs of environmental scientists and chemists contrast.
Answer:
Explanation:
Dynamic Study Modules work by continuously assessing your performance and activity, then using data and analytics to provide personalized content in real-time to reinforce concepts that target each student's particular strengths and weaknesses.
Assess what a student already knows, and where he or she may want to focus additional study
Probability that the 7th grader is a boy = number of boys/(total kids) = 4/(4+4) = 1/2
Probability that the 8th grader is a boy = 5/(5+7) = 5/12
Probability that both are boys = 1/2*(5/12) = 5/24 or 20.8%
I hope this helps!
Answer B changing i think it fits better than any other answer.
