Use what you have learned about the types of energy that travel from the Sun to Earth to match each term with its description infrared radiation takes the form of heat electromagnetic wave causes skin cancer and sunburn visible light transfer of energy from the Sun ultraviolet radiation how Sun's energy travels to Earth radiation made of colors that the eye can see

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

the cover letter for a job search includes the skills one has for the particular job. including a cover letter is always a good idea, as it describes the ability to perform a task, and the employer can easily fetch the intention of the job you want to do.  

the cover letter is very important to be included in the job search document. hence, i strongly with the statement.