11BBEM Lesson 1 Living World

Moses Sir July 05, 2020 0 Comments

Earth was formed some 4.6 billion years ago.

It is the life supporting planet with land forms

like mountains, plateaus, glaciers, etc. Life on

earth exists within a complex structure called

biosphere.

11th Bio Botany Lesson 1 English

Tags 11BBEM 11BBEML1

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