The correct option is 3.
In the presence of oxygen, iron will react with water to form rust. This is a chemical reaction and it is one of the chemical properties of iron.
Chemical properties refers to those properties of a substance, which can be used to identify it chemically, that is by reason of chemical reactions. Examples of chemical properties are reactivity with water, heat of combustion, electromotive force, pH, etc.<span />
A radiosonde i<span>s a battery-powered telemetry instrument package carried into the atmosphere usually by a weather balloon that measures various atmospheric parameters and transmits them by radio to a ground receiver. (That is the definition of a radiosonde when searched).</span>
Answer:
it takes about 29.5 days for the moon to complete a cycle
A. They will Attract to each other