What does this sign mean?

a. watch for a stop sign
b. slow down for a change in the highway surface
c. watch out for crossroad traffic

1: Get ready for a stop, therefore reduce your speed

2: You are getting close to a a downgrade, therefore all drivers should move close carefully. At this point, you apply your brake slowly. The road ahead has a sharp curve. Slow down, keep to your right, then don't overtake. You've almost reached the end of the lane.

3: Another road crosses the highway ahead. Watch left and right carefully for other traffic.

d

explanation:

civil rights vs. civil liberties. civil liberties are basic freedoms while civil rights are the basic right to be free from discrimination based on such characteristics as race, disability, color, gender, national origin, and others. discriminating against an employee on the basis of gender is a civil rights violation.

well, there are a lot of places we get information about earth from. like science classes, websites, books, newspapers, etc.