2)
sunspot data

average sunspot number calendar year
12 1986
29 1987
100 1988
158 1989
142 1990
146 1991
95 1992

during which year would we expect to experience the most background static in satellite communication systems from space to earth?
a) 1986
b) 1989
c) 1990
d) 1992

Which of the following examples can cause gene flow between populations? a. an increase in predators to a population of zebra b. a volcanic eruption that kills half of a population of mice c. bird droppings that contain seeds from a different location d. a person that sprays a toxin on a group of mosquitoes

What was photo 51 with rosalind franklin?

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one