Question

describe an investigation to show that temperature is needed for germination​

Answer 1

A reasonable temperature is important for germination.
Take two Beakers and name them A and B.
Place some Green gram seeds on cotton wool in each of the two measuring utensils.
Keep measuring utensil A in a cold room and container B in the standard room temperature.
In multi-day or two the seeds in Beaker B will develop while the seeds in beaker A won't hint at any germination or may sprout following a few days yet not to a degree the seeds in Beaker A germinates.
Hence germination can happen in an appropriate temperature

Answer 2

A reasonable temperature is important for germination..

Take two beakers and name them A and B. Place some Green gram seeds on Cotton wool in each of the two measuring utensils.. Keep measuring utensils A in a cold room and container B in the standard room temperature.. In multi-day or two the seeds in Beaker B will develop while the seeds in Beaker A won't hint at any germination or sprout following a few days yet not to a degree the seeds in Beaker A germinates.....

Hence germination can happen in an appropriate temperature......

Answer 3

A reasonable temperature is important for germination..

Take two beakers and name them A and B. Place some Green gram seeds on Cotton wool in each of the two measuring utensils.. Keep measuring utensils A in a cold room and container B in the standard room temperature.. In multi-day or two the seeds in Beaker B will develop while the seeds in Beaker A won't hint at any germination or sprout following a few days yet not to a degree the seeds in Beaker A germinates.....

Hence germination can happen in an appropriate temperature......