টিউটোরিয়াল / গাইডলাইন অ্যান্ড্রয়েড অ্যাপ ডাউনলোড
Google Play
GET IT ON Google Play
StudyClub - স্মার্ট স্টাডি প্ল্যাটফর্ম - Study Tracker - App Blocker - Reading Room
মেনু
Self Tracker
Messenger
Question Bank
Study User Report
Session Report
To do list Report
Study Leaderboard
Screen Time Leaderboard
Public Dashboard
Quiz Creator
Quiz Leaderboard
হোম
Profile
About
Tutorials
থিম নির্বাচন

আপনার পছন্দের থিম বেছে নিন।

The Sundarbans is known for vanishing islands but the scientists said the current retreat of the mangrove forests on the southern coastline is not normal. It can be deduced from the excerpt that mangrove forests.

A. vanished faster a few years before
B. have a habit or vanishing by default
C. have not vanished before
D. are not located on islands
E. and Sundarbans are two different issues
সঠিক উত্তরঃ B. have a habit or vanishing by default
Explanation: