A small town is the piney woods of east texas has a soccer field composed of native grasses . The soccer field is mowed once a week. What effect does the mowing have on the ecology of the field

i wish i could with all of them i can barley see the first one so here's the answer to the first one b

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

hope this

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers

not always but somethings can be reproduced in a laboratory.