The important advancement that was made by the Maya was the astrolabe. They used a 260 day calendar. The correct answer is D.
Answer:
The events that led to the environmental movement were widely publicized events in the 1960s such as hydrogen bomb testing on Bikini Atoll, oil spills off of the coast of California, and the use of insecticides and other chemicals.
I don't really know, just know that 1 dead and 19 people injured
