Question

write any 3 features of atmosphere and biosphere​

Answer 1

Explanation:

ATMOSPHERE:-

An atmosphere is a layer or a set of layers of gases surrounding a planet or other material body, that is held in place by the gravity of that body. An atmosphere is more likely to be retained if the gravity it is subject to is high and the temperature of the atmosphere is low.  

The atmosphere of Earth is composed of nitrogen (about 78%), oxygen (about 21%), argon (about 0.9%), carbon dioxide (0.04%) and other gases in trace amounts. Oxygen is used by most organisms for respiration; nitrogen is fixed by bacteria and lightning to produce ammonia used in the construction of nucleotides and amino acids; and carbon dioxide is used by plants, algae and cyanobacteria for photosynthesis. The atmosphere helps to protect living organisms from genetic damage by solar ultraviolet radiation, solar wind and cosmic rays. The current composition of the Earth's atmosphere is the product of billions of years of biochemical modification of the paleoatmosphere by living organisms.

BIOSPHERE:-

The biosphere is the worldwide sum of all ecosystems. It can also be termed the zone of life on Earth, a closed system (apart from solar and cosmic radiation and heat from the interior of the Earth), and largely self-regulating. By the most general biophysiological definition, the biosphere is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, hydrosphere, and atmosphere. The biosphere is postulated to have evolved, beginning with a process of biopoiesis (life created naturally from non-living matter, such as simple organic compounds) or biogenesis (life created from living matter), at least some 3.5 billion years ago.[

Answer 2

Answer: BIOSPHERE

• Biosphere is a part of the Earth where all organisms (plants and animals) live.
• They live in thin upper part of oceans and everywhere on/within the land mass.
• In higher altitude, UV radiation and low temperatures disable life to spread.
• In the deep ocean, life is present in the depth of up to 500 m below oceanic floor.

The Three Functions:

1. Conservation
2. Development
3. Logistic Support

Each biosphere reserve is intended to fulfill three basic functions, which are complementary and mutually reinforcing: Conservation of Biodiversity – to contribute to the conservation of landscapes, ecosystems, species and genetic variation.

ATMOSPHERE

• The gases like Nitrogen, Oxygen, Argon, Carbon dioxide, Neon, Helium etc, contribute to the Earth's atmosphere.
• Divided into 5 layers- exosphere, thermosphere, mesosphere, stratosphere and troposphere.
• The thin blanket of air that surrounds the surface of the Earth.

The Three functions:

1. To support life by providing oxygen for breathing and carbon dioxide to plants.
2. To keep oceans in liquid state.
3. To reduce the effects of UV radiation.

Hope this helped :)