12. by the 1990s, scholars estimate that about what percent of all combat-related deaths are civilians rather than soldiers?
a.
10
b.
25
c.
50
d.
90

13. experts say that it is not really important to understand what causes terrorism; we just need to stop it.
a.
true
b.
false

14. which perspective argues that wars happen when a country or group of people feel that the benefits will outweigh the cost of not going to war?
a.
nature of human nature
b.
trade-off analysis
c.
relations among states
d.
youth bulge

class- current affairs

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

69 is the correct math for the amino acids

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.