Answer:A powder is an assembly of dry particles dispersed in air. If two different powders are mixed perfectly, theoretically, three types of powder.
Explanation:
Infrared rays are used in many forms of thermal technology. This is also used in weather reports to find the temperature of the surrounding areas.
Alfisols can be found in humid areas and semiarid areas. They are formed in forest and savanna vegetation. They are very fertile and productive soils. These soils contains high concentrations of nutrient that are cations like calcium, magnesium, potassium and sodium.
Liquid water freezes and becomes solid ice when the molecules lose energy