SATT ACADEMY

Email:

Password:

Remember Me

Forgot your password?

New to Satt Academy? Create an account

or

Log in with Google Account

Add New Description

Fill up the form and submit

Question

রেডিয়ামের গড় আয়ু 2294 বছর। এর অর্ধায়ু কত>

1560 বছর

1570 বছর

1580 বছর

1590 বছর

ANS : 4

Descrption

To add a description please, login first. click here to login

Cancel Login

©2024 SATT ACADEMY. All rights reserved.