Tissues — Science STD 9 — Question

Choose plant’s micronutrients and macronutrients from the following:
Lron, Chlorine, Sulphur, Copper, Nitrogen, Calcium, Manganese, Potassium, Zinc, Magnesium, Molybdenum, Phosphorus.

How does roughage differ from concentrates with reference to cattle feed?

Give one example of an Indian and foreign poultry breed which when crossed produce an improved variety. List any one desirable trait expected from such cross breeding.

Define manure. What are different manures and how do they affect the soil?

What are macro-nutrients and why are they called macronutrients?

Name the conducting elements of phloem.