B.Sc Chemistry

Both offer job opportunities but the field is different in both. So, go in the field you are interested in.

Going for msc (chemistry) is a decent choice. She may also pursue any applied chem or bio subjects like industrial chem, analytical chem, biochem, biotech etc. After msc, she can clear ugc-net to pursue phd and compete assistant professor exams. All the best. Thank you.

Dear Prapanchan,
Yes you can go for Geo-informatic and Remote sensing because most of the universities having eligibility as Bsc or Ba in geography( min 50% in graduation)
You need to check the particular university Admission process for further action.
All the best

With PCM you are eligible for both streams

yes there are so many entrance exam first you have to clear it

Hi Jishnu, you need to research on the universities in NZ, check the websites and understand the admission requirements. You need to meet the criteria in order to be eligible to apply. New Zealand universities seeks high academic grades, in addition you must take IELTS and any exam which may be required by a particular university. University of Auckland, University of Canterbury, University of Wollongong are good options.
Regards

ASTRO chemistry is not offered in India. Consider USA. For admission you will need not just chemistry both also physics knowledge and an overall profile that includes research work you did till now. Publishing if any. Sports and society service can also be considered.

both are good if done from top universities

Well i would recommend you to go for bioinformatics.or biochemistry.it has now growing opportunities.