QUESTION ONE (a) Zindhile and Phindile are rowing a boat across a river which is 40m wide. They row in a direction
perpendicular to the bank. However, the river is flowing downstream and by the time they reach the other
side, they end up 30m downstream from their starting point. Over what distance did the boat travel?

1= 26.17

2= 1.17

3=30.86

4=5.86

just took the assigment on edge

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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