Science

Nityanand junior college of commerce & Science, Blossom school & jr college, etc.

I think no because environmental Science is related to Biology.

Yes, you can do BCA without mathematics.

You can get a college name according to your score.
Just go through this link and fill out the required details
College predictor in Shiksha
https://www.shiksha.com/college-predictor

Peerless Hospital and BK Roy Research center, Brainware University, Midnapore Medical college, Ramakrishna mission seva pratishthan etc.

Yes, definitely you can. For example: B.Sc. Agriculture, B.Sc. In animal husbandry, B.Sc. In fisheries, B.Sc. Agriculture and food business etc.

The eligibility criteria for M.Sc. Cardiovascular Imaging and Endovascular Technologies of AIIMS are given below. Eligibility B.Sc. Degree in Radiography from a recognized University with a minimum of 60% of marks. So B.Sc. CBZ person can not apply for the asked course.

You can get all the information from the link given below:-
https://www.shiksha.com/college/loyola-college-nungambakkam-chennai-1108/course-b-sc-in-visual-communication-108944

You can get all the information from the following link:-
https://www.shiksha.com/college/centre-for-development-of-advanced-computing-Delhi-hauz-khas-48037.

As you know the board pattern has changed this year so first of all for understanding the patterns you have to solve as many questions as you can.
Another way is to do some smart work revise the chapters regularly so that the whole chapter will be prepared before the exams.
Health is wealth for good marks you have to take care of your health as well.