Answer:
B. Herbicides
Explanation:
Nonnative species are species that are found outside their natural habitat. They are also called foreign species. They are introduced through the activities of man either deliberately or in-deliberately . They can be controlled by chemical, biological and mechanical means.
Mowing, net barriers and inspections are mechanical controls.
Biological control is the deliberate introduction of natural enemies of these nonnative/foreign species.
The use of herbicides is a chemical control of plants that grow where they are not wanted.
A free open-source RDBMS that best meets the needs of Casey is the PostgreSQL.
<h3>What is an open source database?</h3>
An Open source data base is available to be freely copied and modified to meet specific needs. The following are the types of open-source RDBMS; MariaDB, Db2 Express-C, SQLite, CUBRID, Firebird, Oracle Database XE etc. The database makes the management of the company information to be seamless. This is why many companies, not just the tech companies are heading towards the development of excellent databases.
A free open-source RDBMS that best meets the needs of Casey is the PostgreSQL. This is the kind of database that would meet the specifications of the company.
Learn more about open source database:brainly.com/question/20598385
#SPJ1
It might be tuitions or grants.