When heat is added to a substance, the molecules and atoms vibrate faster. Solids, liquids and gases all expand when heat is added. When heat leaves all substances, the molecules vibrate slower. The atoms can get closer which results in the matter contracting.
Eubacteria que se utilizan en procesos industriales:
• Lactobacillus- se utiliza para la preparación de alimentos fermentados tales como queso y yogur.
• Levadura-se utiliza para la preparacion de pan y cervesa.
• Bacillus thuringiensis- se utilizan como insecticidas específicos para lepidópteros
• Escherichia coli-e utilizan en la biotecnología…
Answer:
it becomes a positive ion
Explanation:
that is because when it loses an electron, then it has one more proton in comparison with the total number of electrons making it a positive ion
Answer:
1:(D), 2:(D), 3:(D)
Explanation:
1) When a rock is exposed to heat and pressure, it becomes a metamorphic rock. This is correct, because this is the process that forms a metamorphic rock.
2) A rock becomes sediment through weathering and erosion. In this question, they are not asking you to explain the process of sedimentary rock formation, they are asking you how a rock becomes sediment. The process of weathering and erosion breaks down a rock, and turns that rock into smaller peices, which therefore, through the process of compaction and cementation forms a sedimentary rock.
3) A fern is a land plant. It is not found in the sea and there is not enough information given to tell whether or not the area was hot or cold. This leaves us with D. We can tell that this fossil is a land fossil because ferns do not grow in the ocean.
Hope I could help, and best of luck!
- Cat :')
