Answer is Retrograde motion
Most of the time planet moves in expected path near the ecliptic which is east to west. Some times each planet turns around and moves to the east for a period of time, then it turns around to head in west direction again making a loop or zig-zag against the star background. This is called retrograde motion. Thus retrograde motion is the change of direction of the planets in loop.
The answer to the question is : B: 6;6
<span>There are __6__ different types of air masses that coming from _6___ different locations that influence the weather in North America., namely :
a) </span>Continental Polar ; Large sub polar land area b) Continental Arctic ; Canada, United States c) Continental Antarctic ; Antartica d) Continental Tropical ; Sahara, Arabian & Australian Deserts e) Maritime Polar ; Polar Oceans f) <span>Maritime Tropical ; Rocky Mountains</span>
Answer:
A) The outer planets consist mostly of gases .
Explanation:
Inner planet constitutes of the planets closest to the sun , i.e. , Mars , Earth , Venus , Mercury .
Outer planet constitutes of the planets farthest from the sun , i.e. , Neptune , Uranus , Saturn , Jupiter .
The inner planets of the Solar system are composed of metals and rocks and hence are of solid state and heavy .
Whereas , the outer planets are composed of mainly gases like hydrogen and helium and hence are light in weight .
