Rocks formed from the cooling lava of volcanic eruptions are
a. sedimentary
b. metamorphic
c. limestone
d. igneous

D. igneous is the correct answer.

Explanation:

Rocks formed from the cooling lava of volcanic eruptions are igneous.

Igneous rock formation occurs by the cooling and solidification of lava.

Igneous rock are of two types

When the lava comes to the earth's surface through volcanic eruptions and the rocks that are produced from the lava cooling and solidification are called extrusive igneous rocks.

examples of extrusive igneous rocks are pumice, volcanic ash, cinders,and obsidian.

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

oxygen +1 most likely