Answer is d because after the big bang the carbon dioxide levels changed dramaticly
1) the pressure of the hydrogen gas increases and the gas reaches extreme temperatures
2) bare nuclei collide with each other due to massive amounts of heat
3) the colliding neuclei fuse to form larger helium atoms having two protons and two neutrons
4) hydrogen atoms shed their electrons
This could be wrong so don't fully trust this answer
<span>It is Herding and
livestock. Bringing animals together to form a herd and move from one place to
another has not been possible in south East Asia. This is because in this
region, there is difficult terrain and it’s prone to severe natural calamities
such as earthquakes. Also, the climate is not favorable for rearing livestock.</span>
