Which of the following caused mortality rates to significantly decrease, starting in the 17th century? High number of youth in the population
Decrease in infectious diseases
Hygiene, sanitation, healthcare
Agriculture and transportat

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.

In the water cycle , when does water undergo a chemical change

Physical characteristics of down syndrome