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opposite sides of a parallelogram are congruent...
<span>(3y + 4) = (5y - 6) </span>
<span>2y = 10 </span>
<span>y = 5 </span>
<span>(8x - 12) = (4x + 20) </span>
<span>4x = 32 </span>
<span>x = 8 </span>
Answer:
D. intense volcanic activity.
Explanation:
- The Paleozoic era an era in the geologic time and started about 541 million years. It originated due to the diversity of life forms on the planet. and ended about 252 mn years ago along with the end of Permian era.
- The extinction was related to the changes in climate and exceptionally low sea levels. During which about 95% of the marine species were killed.
The word you're looking for is waning. When the moon's illumination is increasing, it is waxing.
