Arthur George Tansley কত সালে ইকোসিস্টেম শব্দটি ব্যবহার করেন?

সঠিক উত্তর: ১৯৩৫

8 years ago there were 5 members in the Arthur's family and then the average age of the family was 36 years. Mean while Arthur got married and gave birth to a child. Still the average age of his family is same now. What is the age of his wife at the time of his child's birth was.If the difference between the age of her child and herself was 26 years.

ঢাকা বিশ্ববিদ্যালয়ের ৯০% ছাত্র বাস ব্যবহার করে, ১৫% ছাত্র রাইড শেয়ারিং ব্যবহার করে এবং প্রত্যেক ছাত্র বাস অথবা রাইড শেয়ারিং অথবা দুটোই ব্যবহার করে। রাইড শেয়ারিং ব্যবহার করা ছাত্রদের কত শতাংশ বাস ব্যবহার করে।

3 মিটার গভীর একটি পুকুরের তলদেশ প্রকৃত অবস্থান হতে কতঁ উপারে দেখা যাবে?

In the following question the 1st and the last part of the sentence/passage are numbered 1 and 6. The rest of the sentence/ passage is split into fourparts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence/passage and find out which of the four combinations iscorrect. 1. "As a matter of fact", said the boy modestly,"I'm a spaceman."
P. "You can't see it from here."
Q. 'From another planet.'
R. 'I'm a spaceman', he said again.
S. John and George stared at the boy.
6. John gasped, George gave a shout of laughter.

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of thefour alternatives. All of us have admired some writers, ______________ their work over that of others for their writing style as much as for the content of their work. ____________ writerwho has, for more than half a century, _______________ for his searing honesty is George Orwell. He is recondite, but he is never ________________. He says it as it isand yet says it as it has not been said ____________. _______________ for his searing honesty is George Orwell.

At the baseball game, Henry was sitting in seat 253. Marla was sitting to the right of Henry in seat 254. In the seat to the left of Henry was George. Inez was sitting to the left of George. Which seat is Inez sitting in?

Theory of Idealism was expounded by George Hegal, Bishop George and Berkeley According to this

কোনটি স্থলজ ইকোসিস্টেম নয় -

অগাস্ট কোঁৎ সর্বপ্রথম ‘Sociology’ শব্দটি ব্যবহার করেন কত সালে?

.......... did Arthur realize that there was danger.