Last seen: Jul 17, 2023
(3) red with haemoglobin in plasma
Correct answer: (1) dorsal surface
Correct answer: (2) useful
Correct answer: (1) postanal tail
Correct answer: (4) keel of stemum
Correct answer: (3) pectoral girdle/clavicles
Correct answer: (3) Cetacea
Correct answer: (3) intestine
Correct answer: (3) Gambusia
Correct answer: (4) Scyphozoa
Solar constant is 1.4 kW/m2 or 1.4 kJ/s/m2. Solar energy received by 1 m2 area in 1 s = 1.4 kJ Solar energy received by 1 m2 area in one hour (360...
About 100°C to 140°C
Plane mirror reflector.
Solar water heater. Solar cooker. Solar cell.
Copper tube of solar water heater is painted black because black colour is good absorber of heat.
Use of wind energy: (a) in the past - in flour mills (b) at present - for generating the electricity through wind-powered generators.
Source of wind energy: Sun.