1. Calculate the volume of a stone using the displacement method. The initial volume of the water in the graduated cylinder is 20 mL. When the stone was dropped in the cylinder, the water level rose to 25 mL. 5 mL
10 mL
15 mL
20 mL

2. Calculate the density of the stone in number question #1 if its mass is 20 g.

4 g / mL
5 g / mL
2 g / mL
6 g / mL

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg 

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.