Answer :
Natural ventilation uses convection, while passive solar heating relies on radiation and building design that incorporates materials with high thermal mass to store and release solar energy.hence the correct option is B) Convection. Radiation and conduction
Natural ventilation is achieved through convection, while passive solar systems are achieved through radiation and the strategic design of buildings, including the use of materials with high thermal mass, such as bricks and concrete to store heat. Passive solar heating captures the sun's energy directly through south-facing windows that allow sunlight to warm the interior of a building. The heat is absorbed by these materials and then released as needed. On the other hand, active solar systems require external energy to operate pumps or fans that circulate a heat-absorbing fluid through solar collectors.
Natural ventilation is achieved by the processes of radiation and convection, allowing for the circulation of air within a building without the need for mechanical systems. On the other hand, passive solar systems are achieved through strategies such as solar heat gain, shading, and insulation, utilizing the sun's energy for heating and cooling without requiring active input.hence the correct option is B) Convection. Radiation and conduction
