Answer:
a
Explanation:Changing the order of factors does not change the product.
Refraction is the change in the direction of the wave passing from one medium to another.
The change in the direction of the propagation of any wave is due to the different speed at different points.
A far away object appears closer and a small object appears larger.
Take an example. Suppose, an object lies in water.
A far away object appears closer. The angle from which the rays of light reach the observer is larger than the angle that it makes in air.
This makes the angular size larger to the observer's eye which makes the object look larger relative what it looks in air. Similar but vice versa condition occurs in the case when a small object appears larger.
Answer:
I like it but "Your" is supposed to be "You're" like "You're (you are) in the shower wondering...."
Answer:
Irregular galaxies do seem to have things in common with each other, though. They all have some of the gas and dust that gets made into new baby stars as well as some older red stars. ... Many astronomers think that irregular galaxies are the 'in-between' for spiral and elliptical galaxies.
Explanation:
