Answer: 1- Option (D)
2- Option (A)
Explanation:
The green house gases plays a significant role in the earth's global temperature. In absence of green house gas, the earth would have been very much cold and life would would be difficult to exist. The average global temperature would have been about -15°C to 25°C. So the most favorable answer given here is that the<u> earth's temperature would have decrease by about 60°C</u>.
<u>Carbon dioxide (CO₂) is not the most abundant green house gas</u>. It is the second most abundant. The present composition of CO₂ in the atmosphere is about 0.04% by volume. A small increase in the CO₂ level, can lead to a global rise in the temperature. Hence, <u>the above statement is false.</u>
The appropriate response is optic, photograph, medic, or surgical instruments. US-Mexico exchange is very nearly a remodel. US President Donald J. Trump says he needs to quicken converses with renegotiating the North American Free Trade Agreement, an arrangement he says has been a "disaster" for America laborers. Trump has boasted a 20% import charge on every single Mexican item to back his outskirt divider.
Answer:
The sun, our star, will eventually die and become a white dwarf.
Explanation:
When a star dies it goes through a process in which it is called "The lifecycle of a star."
If the sun were to go theough this process and die out, it would eventually reach to the point it can either be a white or black dwarf, but there is more of a possibillity of it becoming a white dwarf than a black dwarf.
