Question

1. De
emir
2. What is biosphere ? Describe its physical divisions ?
What are the major basic requirements of life?​

Answer 1

Answer:

All the living organisms along with their surroundings constitute biosphere. The physical division of biosphere is abiotic factors like water, air, soil, heat and light energy from sun

While the development of tools, plumbing systems and food preservation have enabled modern man to live life with many creature comforts, the truth remains that the requirements for human survival are quite basic. Physiological needs include air, water, food, shelter, sanitation, touch, sleep, and personal space.

Answer 2

Answer:

$\underline{\huge{Answer:-}}$

The biosphere is the portion of Earth where life occurs -- the portions of the land, water and air that hold life. These parts are known, respectively, as the lithosphere, hydrosphere and atmosphere. The lithosphere is the land mass, excluding Earth's mantle and core, which do not support life.

The physical division of biosphere is abiotic factors like water, air, soil, heat and light energy from sun.