An infinite number. Draw one and then keep moving its parallel side further and further away. And you did not even look at the trapeziums that could be generated by varying the length of that side.
Usually NOT - because maps are a projection from a sphere to a plane. In a normal map, the further away from the equator you are, the more stretched out the map is.
The North and South poles
If your definition of parallel lines is that they never meet, then the answer is yes. If, however, the definition is that they remain equidistant from one another at all points, then, in my opinion, the answer is no. It is difficult to explain the second without recourse to diagrams which are very difficult to manage on this site. So consider a cube with vertices ABCD forming the top face and EFGH (in corresponding order) forming the bottom face. Now AB is parallel to the bottom plane - EFGH. And AB is clearly parallel to EF and any line parallel to EF. But is AB parallel lines such as FG? True, they will never meet but the distance between them increases as you move away from BF - ie they are not the same distance apart. Incidentally, Euclid's parallel postulate was phrased in a very different way from the one most mathematicians come across it. That version is a much later equivalent statement.
monocular constancy
no. They are parallel to each other only at the equator. But as soon as you move away from the equator, they are no longer parallel.
They arecircular;parallel to each other;know by numbers which are the degrees away from the equator, ranging from 0° to 90° (North/South);are longest at the equator (0°); andget shorter towards the poles where they become 0 length at the poles (90° N/S).
Away from the poles because the air near Earths surface is warm.
In general, as latitude increases away from the equator towards the poles, temperatures tend to decrease. This is due to a variety of factors, including the angle of sunlight hitting Earth's surface, the length of daylight hours, and the amount of atmosphere sunlight must pass through.
As you move away from the equator to the poles on the March equinox, the angle of incidence of the Sun's rays increases. This means that the sunlight hits the Earth's surface at a steeper angle at the poles compared to the equator, leading to an increase in the amount of atmosphere through which the sunlight has to pass, resulting in more scattering of light and lower intensity of sunlight at the poles.
As latitude increases, the temperature tends to decrease. This is because the amount of solar energy received decreases as you move away from the equator towards the poles. The angle at which sunlight hits the Earth's surface becomes more oblique at higher latitudes, resulting in less direct heating.
Wind.Cold wind ;)
An infinite number. Draw one and then keep moving its parallel side further and further away. And you did not even look at the trapeziums that could be generated by varying the length of that side.
Usually NOT - because maps are a projection from a sphere to a plane. In a normal map, the further away from the equator you are, the more stretched out the map is.
At the equator the surface of the Earth is a right angles to the rays of light coming from the Sun. As the Earth is a globe, as one moves North or South, away form the equator, the surface of the Earth begins to tip away from facing the Sun until, at the poles, the surface of the Earth is parallel to the Rays coming from the Sun. This means that as one moves away from the equator, the surface of the Earth actually receives less of the Sun's energy.
As a convex lens becomes flatter, its focal length increases. This is because a flatter lens bends light rays less, causing them to converge further away before focusing, resulting in a longer focal length.
When two opposite magnetic poles are brought closer together, they attract each other and this force increases as the distance between them decreases. The magnetic field lines between the poles become more concentrated and stronger, resulting in a stronger attractive force. If the poles are brought close enough together, they will eventually snap together due to the strong attraction.