Pls asap will mark brainliest!

question 3(multiple choice worth 2 points)

(6.02 mc)innovative ideas may someday lead to a new way of addressing significant marine issues. which of the following should be considered when evaluating the costs and benefits of a new innovative process?
cost to build
effort and time to implement
maintenance and recurring costs

i and ii only
i and iii only
ii and iii only
i, ii, and iii

question 4(multiple choice worth 2 points)

(6.02 lc)which of the following factors would best contribute to a measurement of environmental quality?
average temperature
water clarity
salinity levels
average speed of sound

question 5(multiple choice worth 2 points)

(6.02 mc)two new products are competing for grant money, with the goal of cleaning up the marine environment. each product removes plastic from the ocean.
product 1 can be used in the open ocean and requires monitoring once every three months to retrieve collected plastic.
product 2 is designed to be used in harbors and marinas and requires monitoring once per week to retrieve collected plastic.
if all other costs and benefits are equal, which of these products would you recommend for the grant?
product 1 because it requires less monitoring, reducing the overall cost
product 1 because it is presumed to be more effective at removing plastic
product 2 because it would provide more job opportunities for local people
product 2 because it would probably last longer in marinas than in the open ocean

question 6(multiple choice worth 2 points)

(6.02 mc)which of the following best describes the relationship between human population size and resource use?
countries with high populations are likely to use more resources.
countries with high populations are likely to use fewer resources.
countries with low populations are likely to use more resources.
there is no correlation between population size and resource use.