The angle at which sunlight hits Earth is one of the most important factors impacting the average temperatures in a region. - Higher angle (more direct) sunlight warms Earth more effectively. - Earth's axis is tilted by \( -23^{\circ} \). Earth currently makes a full rotation every 24 hours (the basis for our day) The tilt of the axis is why latitudes greater than \( 66^{\circ} \mathrm{N} \) don't receive any sunlight in the winter, or have any darkness in the summer It is also why equatorial regions are warmest-they receive the most direct sunlight year-round. Read the sentences below, and indicate which accurately describe the effects of Earth's rotation and the angle of the Sun. Select all that apply. View Available Hint(s) The tilt of Earth and the latitude of a city affect the degree and amount of direct sunlight that the location receives at the winter solstice From the spring equinox unti the fall equinox, the Sun shines continually at the North Pole (for 6 months). However, temperatures during this time never get very warm due to the high angle of the Sun striking Earth at the poles. You see the Sun directly overhead in Anchorage, Alaska, at \( 60^{\circ} \mathrm{N} \) on the summer solstice. This indicates that Earth is tilted at a \( 50^{\circ} \) angle The circumference of Earth at the equator is 24,900 miles. Based on this, a person at the equator is rotating 1040 miles per hour (Round to the nearest tens digit)

Let's analyze each statement provided in the context of Earth's rotation and the angle of the Sun: 1. **The tilt of Earth and the latitude of a city affect the degree and amount of direct sunlight that the location receives at the winter solstice.** - This statement is **accurate**. The tilt of the Earth (approximately \( 23.5^{\circ} \)) causes variations in sunlight received at different latitudes, especially during solstices. At the winter solstice, locations at higher latitudes receive less direct sunlight. 2. **From the spring equinox until the fall equinox, the Sun shines continually at the North Pole (for 6 months). However, temperatures during this time never get very warm due to the high angle of the Sun striking Earth at the poles.** - This statement is **inaccurate**. While it is true that the Sun shines continuously at the North Pole during this period, the temperatures do not rise significantly because the Sun's rays strike at a very low angle, not a high angle. The angle of sunlight is less direct, leading to cooler temperatures. 3. **You see the Sun directly overhead in Anchorage, Alaska, at \( 60^{\circ} \mathrm{N} \) on the summer solstice. This indicates that Earth is tilted at a \( 50^{\circ} \) angle.** - This statement is **inaccurate**. The Sun is directly overhead at the Tropic of Cancer (approximately \( 23.5^{\circ} \mathrm{N} \)) during the summer solstice. At \( 60^{\circ} \mathrm{N} \), the Sun is not directly overhead; it is at a lower angle. The tilt of the Earth is approximately \( 23.5^{\circ} \), not \( 50^{\circ} \). 4. **The circumference of Earth at the equator is 24,900 miles. Based on this, a person at the equator is rotating 1040 miles per hour (Round to the nearest tens digit).** - To verify this, we can calculate the rotational speed: \[ \text{Rotational speed} = \frac{\text{Circumference}}{\text{Time for one rotation}} = \frac{24900 \text{ miles}}{24 \text{ hours}} \approx 1037.5 \text{ miles per hour} \] - Rounding \( 1037.5 \) to the nearest tens digit gives \( 1040 \) miles per hour. Thus, this statement is **accurate**. ### Summary of Accurate Statements: - The first statement is accurate. - The fourth statement is accurate. ### Inaccurate Statements: - The second statement is inaccurate. - The third statement is inaccurate.