Ask me anything ‍♂️ I’m bored

Carey crumpled a wad of paper and placed it in a large glass jar. He recorded the total mass of the jar (including the air in the jar), the paper, the lid, and a match. Carey lit the match, quickly put it in the jar, and sealed the lid. Most of the paper burned. He saw smoke in the jar and black ashes left from the paper. Which sentence best describes the total mass of the jar, lid, paper, and match before burning compared with the total mass after burning?

Explanation:

1) the stages a new product goes through from beginning to end, i.e., the stages that a product passes through from introduction through growth, maturity, and decline. 2) the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

                                          hope it