According to astronomers, the age of the universe
is estimated to be
(1) 1.3 billion years
(2) 4.6 billion years
(3) 7.9 billion years
(4) 13.8 billion years

Which countries were controlled by france at the beginning of world war i? hint: use the map in the lesson to you answer this question. algeria burma cambodia indonesia vietnam

Under which condition below would u expect a coarse-grained intrusive rock like diorite to form?

James hutton is ? a. extensively studied fossils. b. revealed that fossils would provide the history of past life. c. created the first scientific classification of plants and animals. d. provided geologic evidence necessary for calculating the time span of evolution.