solar matter is a renewable / inexhaustible incidence
insolation is solar_radiation. solar_flare is not solar_radiation. inhospitableness is environmental_condition. natural_gas is renewable_resource. solar_wind is not astronomical_object. insolation is not solar_radiation. natural_gas is not renewable_resource. solar_flare is solar_radiation. renewable_resource is not tangible_thing. inhospitableness is not environmental_condition.