You are standing at a railroad crossing. a train comes and blows its horn. it leaves its horn on through the entire crossing. what happens to the sound waves you hear from the horn once the train passes and is moving away from you?

a) nothing

b) the wavelength decreases / higher pitch

c) the wavelength increases / lower pitch

Which process collects sample soils from particular areas of a site? a.) repetitive sampling b.) restorative sampling c.) random sampling d.) representative sampling

Which season occurs in the northern hemisphere when the sun is at its lowest point in the sky

What is the difference between the cultures of central asia and the caucasus region? the majority of people in central asia are muslim; the majority in the caucasus region are christian. the primary language in central asia is armenian; the primary language in the caucasus region is russian. central asia has been plagued by ethnic unrest; the caucasus region has had little ethnic conflict. the effects of soviet rule can still be seen in central asia; the caucasus region has developed its own identity since the fall of the ussr.