Scientists have termed one of the following as Green Gold based on its economic and ecological importance

Which one of the following tissues si known as basic packing tissue and found in xylem and phloem?

Which one of the following plants has unisexual flowers?

In making the saffron spice, which one of the following parts of the plant is used ?

Which one of the following gases is essential for photosynthesis process?

Which one of the following is a plant hormone?