Science

Yes, you can pursue B.A. Hons economics without maths.
https://www.shiksha.com/humanities-social-sciences/colleges/b-a-colleges-india
Use this link to know about the colleges and their fees.

You can consider following courses:
Master of Science in Zoology (Hon.).
Master of Philosophy in Zoology.
Master of Science in Applied Zoology.
M.Sc. Forensic Science.
M.Sc. Health care sciences.
Doctor of Philosophy in Zoology.
Post Graduate Diploma in Life Science.

Hi,
Yes, you can change your subject from Science to Arts for under graduate course. You will get admission as well. But it is very important to choose the right subject and does that subject has a scope in making up a career. Research on this before you choose the subject.

Minimum education for this is graduation at least. Candidate having graduation can apply for M.Sc Atmospheric Science at Calcutta university. Good luck.

Post basic B.Sc Nursing, you want to do and are thinking of starting a clinic. Right? However, under present conditions only a graduate from medical can do this. Best wishes to you.

Job in animation can be defined as the art of breathing life to a character or an object. A blend of entertainment industry and technology, it is concerned with design, drawing, layout and production of graphically rich and attractive multimedia clips.
Here's a list of probable job roles in animation

Firstly, give the IELTS exam. To get a scholarship, you need to very good in academics and if you want 100% scholarship, you should have a couple of research papers published in famous journals.

Cutoff is General: 1319, 173, OBC: 707,165, SC: 481, 187, ST: 273, 53.

Yes, you are eligible for MA Psychology, but please not that psychology should be a major in your B.Sc Course.