1 point
Answer:
For low-mass stars, after the helium has fused into carbon, the core collapses again. As the core collapses, the outer layers of the star are expelled. A planetary nebula is formed by the outer layers. The core remains as a white dwarf and eventually cools to become a black dwarf.
South Korea
China
Japan
Which country has a system of rule that does not let people choose their government,
B. Spanish
C. Portuguese
D.Iroquois
Answer:
The correct answer is indeed A. Aztecs
Explanation:
Because they are the only group in Mexico other than the Mayans and others which are not listed
b. sugarcane
c. coffee
d. tomatoes
Answer:
The correct answer is D
Explanation:
B. pulsation
C. worm action
D. chemical weathering
D. Chemical weathering turns rocks into soil. It occurs when the minerals within a rock interact with the environment, leading to chemical changes that transform the rock into softer substances. An example is rusting of iron, which is similar to how rock components react with the environment to form soil.
While physical weathering will break a rock into chunks,chemical weathering is the process that turns the rock into soil. Chemical weathering occurs when the minerals within a rock interact with environment factors like water, oxygen, and acids. Over time, these reactions can transform solid rock into softer substances like clay and silt - components often found in soil.
Example of Chemical Weathering
A common example of chemical weathering is the rusting of iron. When iron comes in contact with oxygen and water, it undergoes a chemical change to become rust. Similarly, in chemical weathering, components of rocks react with compounds in the environment, thus eventually leading to the formation of soil.
Learn more about Chemical Weathering here:
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Answer:
D
Explanation: