P-2 Heredity and Evolution — Science STD 10 — Question

__________ is the ability of a person to establish relationship with other persons.

The substances taking part in chemical reaction are called ______________ whereas the substances formed as a result of a chemical reaction are called ______________ .

About ……….. Years ago,Wise-man started to practice agriculture.

The giant carbon molecules formed from hundreds and thousands of atoms are called ______________ .

Remaining tissue of the burst follicle forms_________.

The change in the __________ of light rays while going from one medium to another is called refraction.

Fill in the following blanks with suitable words:
The human forelimb and bat’s forelimb are an example of ________ organs whereas an insect’s wing and a bat’s wing are an example of _______ organs.

Group VII A elements are called as ………… .

A transformer transforms the __________and current levels of the generated power.

Metals are converted into compounds before leaching with the help of ………… and ………… .