Elephants, who are important grazers, are instrumental in transforming woodlands into grasslands. this has a tremendous impact on other species that depend on the grass for their survival. which is the significance of the elephant in this example?
a. dominant species
b. keystone species
c. invasive species

b.Keystone species

Explanation:

A keystone species is the one which plays crucial role in an ecosystem necessary for the proper functioning of the ecosystem. A keystone species makes the environment suitable for the survival of other organisms. Elephant is an example of keystone species. In the given situation the elephants have transformed the woodland into grasslands by removing the trees. This results in the increase in the space for the growth of the grasses. The grasses can be used by the diversity of the herbivorous animals as a source of food who are not capable of grazing leaves from trees.

it cools slower in the earth meaning the crystals have more time to form than lava on the surface

i think the answer would be d