Which of the following is a type of technology that allows both men and unmanned vehicles to travel into space?

Why is the road most slick when it first begins to rain? a. oils the road has absorbed begin to float. b. the water has not had time to run off. c. a higher concentration of dirt makes the road more slick. d. none of the above

Symptoms of include nausea, vomiting, improper digestion, and severe abdominal pain, and sufferers may develop diabetes. a. pancreatitis b. hepatitis c. gastritis d. none of the above

Which is the best investment option for a person who wants to make a long-term,tax-free investment? a.traditional ira b.roth ira c.401(k) d.money market account