Cloudy days are cooler than clear ones because clouds prevent more of the sun's radiation from reaching the Earth's surface. clouds look like flat sheets that block out the sky. A. Stratus

B. Cirrocumulus

C. Cirrus

D. Cumulus

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

Reading graphs: unemployment us unemployment rate (1961-2011) identify the trends in the graph and then use the drop- down menu to complete each statement from 1961 to 1965 unemployment was in the mid-2000s through 2011. unemployment was percentage unemployed 1961 1971 1981 1991 2001 2011 year

What factors britain to become an industrial and commercial power?