A scientist measures the growth of a bamboo plant over time. The table
below shows the results.
Time (hours) Height (cm)

10
1.2
20
1.5
30
1.8
40
2.1
50
2.4
60
2.8

How tall was the bamboo plant after 30 hours?

OA. 2.1 cm
OB. 1.8 cm
OC. 1.5 cm
OD. 2.4 cm

What are the similarities of physical and chemical change ?

Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.