Answer:
Why is the sky blue in the day but reddish in the evening?
Explanation:
Small particles of dust and pollution in the air can contribute to (and sometimes even enhance) these colors, but the primary cause of a blue sky and orange/red sunsets or sunrises is scattering by the gas molecules that make up our atmosphere. ... In this way, clouds act as a screen on which nature's colors are painted.
Why is the sky blue in the day but reddish in the evening?
Answer: Physical change.
Explanation: A physical change is one where the chemical formula of a substance is not changed. Steam is H2O and so is room temperature water.
A good example of a physical change is ripping a piece of paper in half. The shape of the piece of paper has changed, but it's chemical makeup has stayed the same.
A good example of a chemical change is burning a piece of paper. The paper has now turned to ash, which is a different chemical substance than paper.
Note: It is important to remember, nothing new is created and nothing is ever destroyed! In all chemical reactions, the same amount of atoms of each element comes out at the end of the reaction. The elements themselves are not changed however the way they are arranged is.
Answer:
Because island is surrounded by ocean. In ocean it is very dangerous to establish society. When tsunami comes and overflow land it will destroy the country or society. Island is not safe for establishing society.
Answer:
Topography
Explanation:
It is the shape of the land.
Answer:
T<5,-3>
Explanation:
If a figure is translated with the rule T<-5, 3>, then it is translated 5 units left and 3 units up.
In order to move the figure back to its original position, we must shift the figure to the right 5 units, and then shift down 3 units.
Therefore the translation that moves the image back to its original position is T<5,-3>