Environmental Science
The earth is tilted at an angle of 23.5o with respect to the plane of its orbit around the sun. If the amount of tilt were increased to 40o, we would expect in middle latitudes:

No appreciable change from present conditions
Cooler summers and milder winters than at present
Hotter summers and colder winters than at present
Cooler summers and colder winters than at present
Hotter summers and milder winters than at present

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Environmental Science
The most important reason why summers in the Southern Hemisphere are not warmer than summers in the Northern Hemisphere is that:

The earth is farther from the sun in July
Over 80% of the Southern Hemisphere is covered with water
The earth is closer to the sun in January
The sun's energy is less intense in the Southern Hemisphere

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