Questions

Primary succession is the orderly and predictable series of events through which a stable ecosystem forms in a previously uninhabited region. Primary succession occurs in regions characterized by the absence of soil and living organisms.

The processes both osmosis and diffusion come under passive transport and require no energy. The movement of solute from the region of higher concentration to the region of lower concentration is nothing but diffusion.

The 1st Asian woman cricketer to play hundred T20I's is Sana Mir.

Sana Mir is a cricketer and the Former Captain of the Pakistan national women's cricket team in ODIs and T20Is. In October 2018, she became the first Pakistani women cricketer to rank number 1 in ICC ODI bowler ranking. She has led Pakistan to two Gold medals in Asian Games 2010 and 2014.

Yellowstone

Argon gas is used in fluorescent and incandescent light bulbs to stop the oxygen in the light bulbs from corroding the hot tungsten filament.

The use of argon in light bulbs prevents the evaporation of the tungsten filaments, which results in increased light bulb life.

Argon is also used to create an inert atmosphere for growing semiconductor crystals, arc welding and for processes that need protection from other kinds of atmospheric gases.