PART - 2 CH - 5 Life processes — Science STD 10 — Question

Sequentially arrange the events that occur in biogas plant. p. activity of anaerobic microbes q. The slurry left behind is used as manure r. cow-dung and water is mixed and this slurry is fed into the digester s. Methane gas is generated t. Breakdown of complex compounds of the cow-dung slurry.

State the chemical name of salt which is useful and important raw material of food.

Following events in flowering plants given below:
(a) Pollen tube develops in style
(b) Plumule develops as shoot system
(c) Ovule modified in seed
(d) Anther releases pollen and stigma receives it.
Arrange them in correct sequence.

What is reflection of light? Give the types of reflection.

Observe the diagram and indicate which parts shows function of storage of urine and filtration of blood?

Among grass, deer, lion by whom maximum energy is transported to its upper trophic level?

Which scientist proposed the ‘periodic law’ for the modern periodic table?

What are various orders of food chain named as?

What is the minimum number of rays required for locating the image formed by a concave mirror?