51. C

47. c

43. a

56, a

52. d

48.5

62 answers 12

34 9

What ocean is the deepest?

What are the three essential chemical elements in the biosphere?

What is the definition of a non-renewable resource? a. a resource that can be replaced over time c. a resource that is difficult to mine b. a resource that is worth a lot of money d. a resource that cannot be replaced over time

There are hundreds of major and sub-fields of science. Who decides which field of science is officially a sub-field of another field? Select one: a. There is a board of scientists who decide. b. No one.

How might an environment be affected if humans introduce a new type of plant to the environment?

Com suas palavras, responda: O que é cidadania?

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