Jack just read an interesting study regarding middle school children's use of computer-animated simulations to learn introductory chemistry. Although he is a physics professor he wants to see if the benefits of simulations are also found in college physics learners. Jack's research topic is best described as a study that:.
a. tests theory.
b. is a replication.
c. is developed thorough library search.
d. comes from personal experiences.

b. is a replication

Explanation:

Replication is the term given to repeating the same research study in different environment  and with changed subject. It is done to decide whether core finding of first study still holds true for other situation and context or not.

here impact of computer simulation helped chemistry students. Now jack  wants to see if simulation van help student in physics or not thus impact of simulation is being researched again and hence it is replication research methodology.

answer: hey improve the marine life in a certain area.

they provide a new location for fishermen to fish and which works to ease the pressure on natural reefs.

they are a great way to get rid of large objects that would otherwise be placed on landfills

explanation:

the first two-party system consisted of the federalist party, who supported the ratification of the constitution, and the democratic-republican party or the anti-administration party (anti-federalists), who opposed the powerful central government, among others, that the constitution established when it took effect in