How does the size of a star influence its brightness

Which biochemical cycle is relied upon for plant photosynthesis

In the 1400s, portugal’s economy was based on a. industry b. exports c. finance d. trade

Sam hated the long nights of winter! his mother called him in from playing so early: around 4: 30 pm! it is usually dark out when sam is eating supper. what letter represents the long nights where sam lives? a) a. b) b. c) c. d) d.