Answer:
Main sequence stars change into giant star by exhausting their hydrogen supply.
Explanation:
This fact explain that main sequence stars change into giant star by exhausting their hydrogen supply. A main sequence star burns due to the presence of hydrogen in its core, because of this burning the main sequence reaching the end of its life cycle. Then the pressure of fusion reaction provides an outward thrust that expands the star many times larger than its original size, that leads to the formation of a red giant.
Answer: Lateral prefrontal cortex
Explanation: Lateral prefrontal cortex (LPFC) is a region of frontal cortex in the brain, where varying goal-directed behavior is expressed.
Therefore, the region have strong connections with motor nerve cells and are activated by procedures or tasks that requires high-level cognition.
However, presentation of juice in the mouth following a spike in neural activity reinforces the lateral prefrontal cortex (LPFC) to encodes information about the response in the Japanese monkeys.
D. The reaction absorbs energy from its surroundings
Heat is a form of energy, so if the chemical reaction makes its surroundings become colder, it is absorbing heat energy.
Answer:Cold air is heavier that warm air
Explanation:
