How many sand pounds must a sand bag weight to test if a safety net can absorb the proper amount of force?

a. 150lbsb. 200lbsc. 400lbsd. 5,000lbs

In an observational study, people who ate four or more servings of fresh fruits and vegetables each day were less likely to develop colon cancer than people who ate little fruit or vegetables.

One example of a very complex land ecosystem, full of thousands of kinds of living things ... What is the answer

Why did the North want to block southern ports? A) with out ports the union's army could not move north B) They wanted to shut down trade between Europe and the south C) they didn't want traitors to escape to the south through the ports D) the

Spectrum of mental disorders, the features of which include onset during infancy or childhood, preoccupation with subjective mental activity, inability to interact socially, and impaired communication.

What artifact makes historians think the Shang had some contact with civilizations to their West?

The time it takes for monetary or fiscal policy to become effective is the: A. outside lag B. inside lag C. policy lag D. none of the above

What type of research is designed specifically to test some developmental explanation and expand scientific knowledge?

What do geographers call areas whose residents share a common characteristic? 1. Economic Spheres 2. Free-Trade Zones 3. Homogeneous 4. Regions

How might reading a series of proverbs affect people?

Drew forgot his glasses and couldn't see the speaker's visual aids. this is an example of what type of noise