Answer:
A.
Explanation:
Sign changing means that each value went from positive to negative.
A is a 180 degree rotation around the origin, the answer would be A.
B doesn't change the sign for neither x nor y.
C changes the sign for y, but not x.
D changes the sign for x, but not y.
Answer:
Solar flares are massive explosions of energy in the Sun's atmosphere.
The new technique allows changes in the Sun's magnetic fields, which drive the initiation of solar flares, to be monitored up to ten times faster than previous methods.
Answer:
D. are places where huge amounts of felsic magma have been erupted or intruded.
Explanation:
Large igneous provincession areas of great extension, have more than 100 thousand square meters, that arose as a result of the eruption of continuous magma in short geological intervals of time. Large igneous provinces consists of an accumulation of igneous rocks and features extrusive rocks, such as delava flows and pyroclast deposits.
The last one. Mountains formed where Earth cooled and shrank.
