Science

Check the below link for your required information
https://www.shiksha.com/university/gujarat-forensic-sciences-university-gandhinagar-48862/course-m-sc-in-toxicology-712661

Check out this link to know the latest cutoff information for M.Sc. in Microbiology at The Institute of Science, Nirma University
https://www.shiksha.com/college/institute-of-science-nirma-university-s-g-highway-ahmedabad-39370/course-m-sc-in-microbiology-392631

All are different.

JNU is known for providing world-class courses in languages and Arts. However other disciplines are also there like engineering, computer sciences and life sciences. You can apply for any language-related discipline UG courses because it's open to all streams at the +2 level. You can check other courses as well by visiting the below link
https://www.shiksha.com/university/jnu-jawaharlal-nehru-university-Delhi-4225.

Please check the below link for complete details of the DNB exams.
https://www.shiksha.com/medicine-health-sciences/dnb-pdcet-exam.

Just check out this link to know the latest cutoff information about JSS Medical College, Mysore - M.Sc. in Clinical Embryology
https://www.shiksha.com/college/jss-medical-college-mysore-58409/cutoff

Check out the given below link for the answer of your query
https://www.shiksha.com/college/loyola-college-nungambakkam-chennai-1108/cutoff

No, you can not study any specific ocean-related course at class 6 standard as of now because None of the education boards is it CBSE, ICSE, or state boards offers such a course. However, you choose an e-courses platform like Coursera, NPTEL, SWAYAM, etc. To learn and develop an understanding of the course at your own pace and it's absolutely free with optional payment for certification.

Please check out the given link to explore the latest information about CM College of Arts and Science - B.A. in Mass Communication and Journalism
https://www.shiksha.com/college/cm-college-of-arts-and-science-wayanad-71063/course-b-a-in-mass-communication-and-journalism-470443

Hello Sneha, Contact the University they will provide you all the details related to admission.