Think of a question you've had about something around you. Maybe it's a manufacturer's claim about a product or how two substances would interact. Design a hypothetical research study using the steps of scientific method to attempt to answer this question.​

Which challenges do countries face in limiting the spread of communicable diseases? check all that apply. 1. lack of vaccinations 2. lack of healthy food available 3. increase of worldwide travel 4. decrease of available clean water 5. increase in migration of infected animals

Brainliest. what are two not needed parts of the body?

At school, there have been a lot of rumors going around about how certain sexually transmitted diseases are spread. which skill would be most valuable to you take the necessary steps to learn what you need to know to protect yourself? a. self-direction b. critical thinking c. problem solving d. effective communication       select the best answer from the choices provided.