Which of the following is an obstacle to creating computer-based models for tracking a hurricane? (2 points)
a. hurricanes form over water, where it is difficult to observe them.
b. most sources of data about hurricanes are anecdotal & unreliable.
c. forecasters must consider a large number of variables that affect the path of the storm.
d. all of the above

D) All of the above

A hurricane refers to the storm which originates from the ocean and moves to the land surface. The factors which were acting as obstacle to creating computer-based models for tracking a hurricane are as follows:

b. heterotroph

explanation:

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.