developed the theory of inheritance of acquired characteristics,
What will be an ideal response?
lamarck
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Because sedimentary rocks are formed at Earth's surface, they provide clues about past geologic events and settings. A low energy, quiet environment such as a lagoon or lake bed provide the perfect setting for the formation of
A) marble B) shale and evaporites. C) basalt. D) none of the above
Tommy and Teagan are learning the process of good home gardening and decide to help their parents as best as they can. Every day they walk along rows of bean plants, carefully inspecting each plant for harmful insects, and removing any that they find
However, the bean plants do not grow well, and few beans form. Their parents notice the poor beans, inspect the plants and soil, and tell the children that walking around the plants every day has hurt the plants by ________. A) converting the topsoil into clay B) compacting the soil, decreasing aeration and infiltration C) increasing soil aeration and killing soil microorganisms D) reducing the nutrient minerals in the soil E) contaminating the soil with toxins leaching from their shoes
A safety factor of 1 implies that driving forces are 10 times greater than resisting forces
Indicate whether the statement is true or false
Why does lead have so many industrial uses?
A) It is extremely cheap to mine and process. B) It has very strong bonds, making is a valuable hard mineral used for vehicles. C) It is a metal, and therefore is an excellent conductor of electricity and is used for power lines. D) It can be easily cast, molded, and shaped, as well as be used for its chemical properties in glazes, batteries, and gasoline.