If someone sprays perfume in the another room it can be smelled a few hours later i need help finding the answer to this problem and ima a 6th grader

Because of time of process of Diffusion

Explanation:

The process of a particular gas molecules (of perfume - in this case), moving through other gases (air present - in this case) is called Diffusion. These perfume molecules spread all over in air, by moving through in all directions. This process takes little times, seconds or minutes, to happen.

your multimedia presentation should meet the following specifications: • it should be a minimum of four written paragraphs in length, which includes an introduction that previews the topic, incorporates facts, definitions, quotations, or other important information. • it should address all of the questions assigned in the webquest. • it should use vocabulary specific to the topic. • it should include a works cited page to document all sources. • it should reflect mastery of the basic rules of grammar, punctuation, and spelling. • it should use formatting, multimedia, and graphics to reinforce and extend the content. • it should include three multimedia elements and should use at least two of the following types of multimedia: 1. photographs 2. video clips 3. audio clips 4. maps 5. charts 6. graphs 7. works of art (such as original songs, sculptures, painting, performances) • it should be presented in one of the following formats: 1. word document 2. powerpoint presentation 3. prezi presentation can i have points idk the answer

the answer should be b.

explanation:

it should be b because she researched before writing so it would be in past tense. "the author researches her subject before she had written the first draft.