A plant requires sunlight to grow.
Still it takes about eight minutes for sunlight to travel from the sun to the earth.
A plant requires something that takes eight minutes to travel to the earth to grow.
A plant requires what to grow?

* Something that is created on Mars
* Something made primarily of oxygen and nitrogen
* Something that is found on Jupiter
* Something that take eight minutes to travel to the Earth
* Basic units of the plant body.
* keeping food fresh for long periods of time
* Something that comes from the Moon
* Something whose growth is discouraged by heavy wet soils