Question

earth land masses float on upper mantle and crust
over time these plates have moved and continue to move today
245 mya one continent - pangea
150 mya two continents - southern continent gondwana and the northern continent laurasis
65 mya the current continents were already formed but were not in current locations.
india was an island
value: 7
radioactive dating has determined that the earth is approximately

a. 1 million years old
b. 5000 thousand years old
c. 1.5 million years old
d. 2.5 billion years old
e. 4.5 billion years old
f. 1 trillion years old

Explanation:

Radioactive dating is a scientific method used to determine the age of rocks and minerals. The Earth's age is determined through analyzing radioactive isotopes in meteorites and Earth's oldest rocks. The widely - accepted age of the Earth, based on scientific evidence from radioactive dating (such as uranium - lead dating), is approximately 4.5 billion years old.

Answer:

e. 4.5 billion years old