
A. Fusion: Fusion is when a solid is heated until it turns into a liquid by breaking its intermolecular forces.
B. Vaporization: Vaporization is when a liquid changes into a gas by applying heat.
C. Condensation: Condensation is the process where a gas turns into a liquid, the reverse of vaporization.
D. Solidification: Solidification is when a liquid turns into a solid, the reverse of fusion.
E. Sublimation: Sublimation is when a solid turns directly into a gas without becoming a liquid first.
F. Deposition: Deposition is when a gas turns directly into a solid without becoming a liquid first.
| A | B |
|---|---|
| (i) broke out | (a) an attitude of kindness, a readiness to give freely |
| (ii) in accordance with | (b) was not able to tolerate |
| (iii) a helping hand | (c) began suddenly in a violent way |
| (iv) could not stomach | (d) assistance |
| (v) generosity of spirit | (e) persons with power to make decisions |
| (vi) figures of authority | (f) according to a particular rule, principle, or system |
ABC is a triangle in which altitudes BE and CF to sides AC and AB are equal (see Fig). Show that
(i) ∆ ABE ≅ ∆ ACF
(ii) AB = AC, i.e., ABC is an isosceles triangle.

Section | Number of girls per thousand boys |
|---|---|
Scheduled Caste (SC) | 940 |
Scheduled Tribe (ST) | 970 |
Non-SC/ST | 920 |
Backward districts | 950 |
Non-backward districts | 920 |
Rural | 930 |
Urban | 910 |
(i) Represent the information above by a bar graph.
(ii) In the classroom discuss what conclusions can be arrived at from the graph.