. Which of the following countries has the largest area in the world?
(a) Canada
(b) China
(c) USA
(d) Russia

2. Which river in the world carries the maximum volume of water? (a) Amazon
(b) Nile
(c) Mississippi
(d) None of these

Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite

What are the answers for the following questions?

Which of the following types of tourist are best to bring money to the local southeast asian communities