Describe the offspring of a true-bred white flowering pea plant

The offspring of true-bred white-flowering pea plants have the same traits. So, they are white in color.

Offspring is the product of reproduction. It acquires the characters of parents and consists of some variations as well.

While performing a cross between pure red and pure white, pink flowers are obtained in the F1 generation due to incomplete dominance. Now, on selfing, this F1 generation, red, pink, and white flowers are produced in the ratio of 1:2:1, where true-bred white flowers are obtained.

Therefore, the offsprings of a true-bred white flowering have the same traits, and they are recessive in nature.

To learn more about Mendel's law, refer to the link:

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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.