Recrystallization. During the process of metamorphism, the particle size of the rock may change by a process called recrystallization. For instance, the small calcite crystals in limestone, a sedimentary rock, change into larger crystals during formation of the metamorphic rock marble.
A Only one variable changed
Answer: b
Explanation: you have to use both math and science in engineering
4.75 billion years ago, a large star near what is now the Solar System went supernova, sending heavy element debris outward into the galaxy. Some of the debris, after traveling long distances through space, collided with a Hydrogen cloud.
The best technique for your mother is that she uses each word in a sentence to give it a meaning, and remember it better (option 2).
Elaborative rehearsal is a common technique used to remember information in a long-term way. Due to this, this technique can be used to move information from short-term memory to long-term memory.
In this technique, the main purpose is to associate the new information with something you already know. In learning new words, this can include:
- Associating new words to images.
- Creating examples of sentences.
- Associating a new word to a synonym you already know.
In this context, the technique that is part of elaborative rehearsal is using the word in a sentence (option 2).
Learn more in: brainly.com/question/11231513?