I need help with AP history pt 2

Which statements describe continental crust? select the three correct answers. a-it is formed in all parts of the continents. b-it is made mostly of volcanic rock. c-it is destroyed by melting near the top of the mantle. d-it is less than 10 km thick. e-its ages ranges from very young to more than 4 billion years old.

Which of the following situations would most likely occur if a human-induced event caused the ocean water to become the same temperature around the world? deep ocean current circulation would increase salt distribution around the world's oceans. surface ocean current circulation would distribute heat around land masses at a faster rate. new, fresher water would float on top of dense salt water and limit thermohaline circulation. some land masses in the northern hemisphere would start to warm up over time, melting snow and ice. runoff of surface freshwaters and rainfall would no longer have an effect on the salinity of ocean waters.

Question 4 which was a foundation of the industrial revolution? a) large states held huge supplies of raw materials. b) coal replaced wood as the primary source of fuel. c) road infrastructure replaced waterways for transport. d) mercantilist policies drove down the price of goods. question 7 which was not a government response to the socialist challenges? a) establishing universal suffrage to all classes b) introducing medical insurance and pensions c) prohibiting underground employment for women d) restricting child labor for children under ten years old question 9 which was a cause of the boer war? a) movement and settlement of bantu peoples into afrikaner-populated states b) independence of northern afrikaner territories from british colonial authority c) evacuation of most afrikaner people out of south africa and back into europe d) british reconstitution of afrikaner-held territories into the union of south africa