solar matter is a renewable / inexhaustible incidence
inhospitableness is environmental_condition. non_renewable_resource is tangible_thing. insolation is solar_radiation. solar_flare is solar_radiation. state_of_matter is chemical_phenomenon. renewable_resource is tangible_thing. solar_wind is astronomical_object. natural_gas is organic_matter. natural_gas is renewable_resource. partially_blocking_sunlight has effect_of_cooling_earth