বি২ স্তরের শব্দতালিকা - বিশ্বব্রহ্মাণ্ড

the existence of a range of different plants and animals in a natural environment

জীববৈচিত্র্য

a person who is concerned with the environment and tries to protect it

পরিবেশবাদী

the protection of the natural environment and resources from wasteful human activities

সংরক্ষণ

the extensive removal of forests, typically causing environmental damage

বন নিধন

a period during which the sun or the moon is shadowed by a dark circle

অন্ধকার

related to the sun

সূর্যসম্বন্ধীয়

relating to the moon

চাঁদসম্পর্কিত

the light coming from the moon

চন্দ্রপ্রভা

the mainly green and red lights that appear in the sky in the Northern Hemisphere of the earth

সুমেরু প্রভা

to be in motion on a body of water or current of air at a slow pace

ভাসমান হচ্ছে

the rise and fall of the sea level, which happens regularly, as a result of the attraction of the sun and moon

প্রবাহ

the hot gas produced when water is heated to the boiling point

বাষ্প

the natural light coming from the sun

রবিকর

the first time sunlight appears during the day

সকাল

the sudden outburst of lava and steam from a volcanic mountain

আগ্নেয়গিরির অগ্ন্যুত্পাত

related to or formed by the activity of volcanoes

একটি আগ্নেয়গিরি সম্পর্কিত

a substance from the inner layers of the earth which is erupted out of a volcanic mountain

লাভা

a sudden fall of a large mass of dirt or rock down a mountainside or cliff

ভূমিস্থলন

the relation between plants and animals to each other and their environment

বাস্তুসংস্থান

a community of living organisms together with their physical environment, interacting as a system

বাস্তুতন্ত্র

(of a natural resource or source of energy) existing in limited amounts and not replaceable after being used

নবায়নযোগ্য

relating to the electric power which is generated by the flow of water

জলশক্তি হইতে উত্পন্ন বিদ্যুত বিশেষ

a machine or engine that produces power from the pressure of a liquid or gas on a turning wheel

ঘূর্ণযন্ত্র

power generated by any source of energy in a way that does not harm the environment or consume the natural resources of the earth

বিকল্প শক্তি

smoke or gas that has a sharp smell or is harmful if inhaled

ধূম্র

to cause something to remain in its original state without any significant change

বাঁচাইয়া রাখা

an area of land or surface that is higher at one end or side than another

ঢাল

without any light

সম্পূর্ণ অন্ধকারে

having below zero degrees Celsius or Fahrenheit

উপ শূন্য