Science mysteries: why do people yawn?
science has given humans many amazing devices and useful bits of knowledge. we know so much about our bodies and how to stay healthy, for example. we also know how to make machines and devices that make life easy for us. scientists dedicate their lives to knowledge, but even with a lifetime commitment, sometimes scientists fail to find all the answers. one mystery that still remains unsolved is why we yawn-what makes us yawn and what purpose it serves.
which word from the first paragraph presents the author's view of scientists?
yawn
fight
dedicate
believe

Write a procedure to explain something you already know how to do

Select the indicate quotation that correctly sequences the verbs

Correct the sentence below: when looking for a new babysitter: i look for the following- experience, expertise, and a love for children. question 11 options: when looking for a new babysitter i look for the following- experience, expertise, and a love for children. when looking for a new babysitter i look for the following: experience, expertise, and a love for children. when looking for a new babysitter i look for the following experience, expertise, and a love for children. when looking for a new babysitter i look for: the following experience, expertise, and a love for children. correct the sentence below: the pizza delivery boy was neither early nor late he was right on time. question 12 options: correct as it is the pizza delivery boy was neither early nor late, he was right on time. the pizza delivery boy was neither early nor late; and he was right on time. the pizza delivery boy was neither early nor late: he was right on time.