If you're writing a biography about a subject who's not well known, and is perhaps a person who lives in your community or part of your family, you'll probably find most of your information by: A. reading books.
B. searching the Internet.
C. interviewing the subject or person who knew the subject.
D. A and B; C is unlikely.

Afood web shows who eats who in any given habitat. every living thing, from one-celled algae to giant blue whales, needs food to survive. each food web is a possible pathway that energy and matter can follow through the habitat. a food web begins with producers: organisms that convert sunlight into usable chemical energy. the food web is completed by the decomposers who turn organic wastes, such as decaying plants, into inorganic materials, such as nutrient-rich soil. decomposers complete the cycle of life, returning nutrients to the soil or oceans for use by producers. in this food web, identify the decomposer.

Which of the following always exist between two objects having mass ● elastic force ● contact force ●gravitational force ●magnetic force

Need will give 100 ! in no less than one hundred fifty words, explain why it is important for engineers to sketch designs and use them to clarify their designs to other people, giving at least three reasons.