Give any four factors that favour high speciation at lower altitudes.

Given any four factors necessary for a healthy person.

Give any two factors responsible for genetic variation.

What is meant by speciation ? List four factors that could lead to speciation . Which of these cannot be a major factor in the speciation of a self-pollinating plant species. Give reason to justify your answer.

Write any two factors that are favourable for the formation of oxyhaemoglobin .

Explain any four factors that affect the supply of good.

Give any four factors which are responsible for the destruction of forests.

Mention the factors that favour ultrafiltration in Bowman's capsule.