In the 11th century, a Chinese scientist named Shen Kuo was one of the first people to develop a theory of Earth's changing landscape. From a number of observations, he concluded that some cliffs and other landforms are formed by the processes of erosion and deposition. About 800 years later, an American scientist named William Morris Davis developed his theory of the cycle of erosion, in which he reasoned that flowing rivers form and shape many landforms.

The example described above suggests that

A. people from different cultures and living at different times can contribute to scientific knowledge.
B. only people from Western Europe have developed useful scientific theories.
C. none of the scientific theories developed in the past have been accurate.
D. American scientists were the first to theorize that erosion can play a role in shaping land forms.

Select the situation bellow that would produce a total displacement of zero. a. a trip to the moon and then to mars b. a horse galloping from one end of a field to another c. the criss-crossing path of a bug as it flies from flower to flower d. a round-trip ride to school and back

What molecule contains an organisms genetic material, passed down from parents to their offspring

Can someone pretty me with this ? it’s urgent. compare the three theories of emotion. here are the three theories of emotion. cannon-bard theory of emotion: the belief that both psychological arousal and emotional experience are produced stimultaneously ( at the same time) by the same nerve stimulus. james-lange theory of emotion: the belief that emotional experience is a reaction to bodily events occurring as a result of an external situation. ( “ i feel sad because i am crying.) schachter-singer theory of emotion: the belief that emotions are jointly determined by a nonspecific kind of psychological (bodily function) arousal and its interpretation, based on environmental ( natural surroundings) cues. which of these theories makes most sense to you? why. your response should be written using proper english spelling and grammar. and it needs to be 10 complete sentences.