Lines on weather map joining places having equal pressure are called

1. Isohyets
2. Isohales
3. Isobars
4. Isotherm

Scales measuring the force of winds at sea

1. Primary scale
2. Verbal scale
3. Beaufort scale
4. Statement scale

Lines on a weather map joining places having equal amount of precipitation

1. Isobar
2. Isohyet
3. Isohale
4. Isotherm

Fill in the blanks:

(a) …………… is a place where weather conditions are recorded with the help of instruments.

(b) …………… is used to measure rainfall.

(c) …………… thermometer can record the highest and the lowest temperature of a given period.

(d) Horizontal movement of air near the surface of the earth is called …………… .