SOLAR SYSTEM

#34. At what approximate date is the earth furthest from the sun (aphelion)?

• ABeginning of July
• BBeginning of January
• C21 March
• D21 August

#1. In which months is the difference between apparent noon and means noon the greatest?

• AMarch and September
• BJune and December
• CNovember and February
• DJanuary and July

#2. What is the reason for seasonal changes in climate?

• ABecause the Earth's spin axis is inclined to the plane of its orbit round the Sun
• BBecause the distance between the Earth and the Sun varies over a year
• CBecause the Earth's orbital speed round the Sun varies according to the time of the year
• DBecause of the difference between the Tropical Year and the Calendar year