Answer:
Environmental etiology
Explanation:
environmental factors such as exposure to tobacco smoke and herbicides has been linked to increased risk off autism in children.
Answer:
Gear a
Explanation:
Gears are pairs of rotating elements which transmit torque to the one another. Each gears have teeth on them and they mesh together to transfer rotary motion from one shaft to the the shaft. Gears can change the power, speed and the direction of power source.
In the context, it is given that gear a is the driving gear. If the gear a meshes with gear b, gear a will rotate gear b. Hence gear a is the driving gear and gear b is the driven gear. Thus gear b gets its motion from gear a.
Now if the teeth of gear b are sheared, then gear b will not be able to mesh with gear a and thus gear b ceases to stop its motion.
Thus gear a will turn.
someone who chooses to have a hourly/tip job over a salary job is choosing to work a specific time/times for specific pay plus the incentive of maybe getting extra money. a salaried position guarantees unlimited availability. the hourly choice might be made due to other obligations such as familial responsibilities, commitments to another job, or higher learbing. an hourly position might be best for them as their financial obligations vary from day to day.
I left typos and used weird word usage so that you can use this to make your own paragraph.
