What piece of evidence was missing when Wegner first proposed his continental drift theory?
Rock formation evidence

Climate evidence

Fossil evidence

Mechanism evidence

In 1933 the 21st amendment was added to the u.s. constitution, allowing for the manfacture, transportation, and sale of alacoholic beverages in the united states. why was this amendment needed?

The vedas were a collection of aryan religious writings t or f

Ozone in the upper atmosphere has been depleted by a. sulfur dioxide. b. chlorofluorocarbons. c. carbon dioxide. d. oxygen.