Who first detected the existence of other galaxies?

Which measure of humidity, relative humidity or dew point, best describes the actual quantity of water vapor in a mass of air

Mosses, lichens and shrubs can be found where in russia? a.grasslands b.mountain regions c.coastal plains d.siberian tundra

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.