The answer is Elastic potential energy :))
When water molecules are being made, two hydrogen atoms will make a hydrogen bond with one oxygen atom, making a water molecule.
Answer: Interventional Study
Explanation: When a treatment group is compared to standard (control) group it is called Interventional Study
Answer:
Presence of acidic oxides and other chemicals in air can change the PH value of the Rain.
Explanation:
Generally, PH value of rain remains 5.0. But when the air composition changes due to sulfur dioxide or nitrogen oxides released from automobiles and coal based power plants, the combination of these with rain water makes rainy water more acidic. This results in change of PH value of Rain.
