Uranium-238 (U-238) decays into lead-206 (Pb-206). Which of the following is a true statement?

A. Pb-206 is the parent, and U-238 is the daughter.
B. U-238 is the parent, and Pb-206 is the daughter.
C. A rock sample containing a relatively large amount of U-238 is old.
D. A rock sample containing a relatively small amount of Pb-206 is old.

Paraguay is one of the only two countries in the americas that don't have a coastal border. the country is slightly smaller than california. it was under a military dictatorship for 35 years, ending in 1989; today it is a constitutional republic. most of the population is roman catholic, and over 60% of the people live in cities. its environment is threatened by deforestation and water pollution. which of the following facts from the paragraph above best describes an element of paraguay's culture? (apex)

How many time zone are there on earth

What are the answers for the following questions?