Which of the following is true concerning continental crust? a. it does not contain radioactive elements. b. it mostly contains heavier and denser minerals than the mantle. c. it efficiently transfers heat from the mantle to the surface. d. none of the above

One statements is an example of a scientific observation. another statement is an example of a scientific explanation. identify the correct statement for each category to illustrate how scientific explanations are inferred from scientific observations.

(drag each tile to the correct identify which questions can be answered by what can be answered by science or which cannot. -is it right or wrong to use genetic engineering to produce new food products? -what are the most common social settings that tend to produce accomplished artists? -if a new gene is added to the genome of a tomato species, will that species be more resistant to insects? -should humans use biotechnology to bring extinct organisms from the fossil record back to life? -do the types of organisms found in the fossil record appear in consistent sequences in different parts of the world? -are michelangelo's paintings more impressive than rembrandt's?

Were does condensation occur? a) hydroshereb) lithosherec) boishered) atmosphere