Is the big bang the only way to explain the expansion of the universe

Scientists call this theory for the origin of the universe the Big Bang. ... This is the only part of the universe in which light has had time to ... of matter this is just what they think

No, there are much other ways to explain the expansion of the universe and there is pretty much many ways to explain almost anything and everything

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy

1)

i))the process of preparing food by green plants in the presence of sunlight is called photosynthesis.

ii) leaf is the site for photosynthesis.

iii) it takes place as,

6h2o+6co2=c6h12o6+602