29. What is the estimated average seasonal temperature change in Miami, FL a. 25

Question

29. What is the estimated average seasonal temperature change in Miami, FL
a. 25°F
b. 35°F
c. 40°F
d. 10°F
30. What is the estimated average seasonal temperature change in Regina, Canada
a. 35°F
b. 60°F
c. 70°F
d. 50°F
31. Over the globe, at what latitudes are the smallest seasonal temperature changes found?
a. Tropics
b. Mid-latitudes
c. Polar regions
d. None of the above
32. Where are the large seasonal temperature changes found?
a. Over land in the tropics
b. Over water in the tropics
c. Over land in the Polar region
d. Over water in the polar region
e. None of the above

30 40 60 70 20 30 50 80 ANUARY 50 90 70 90 80 JULY The maps above show the average January and July global temperatures in degree Fahrenheit at six locations: 1. Northern Siberia, 2. The Aleutian Islands 3. Regina, Canada, 4. Los Angeles, CA, 5. Miami, Florida, 6. Amazon River Delta. Questionsto-are based on the maps 28. What is the estimated average seasonal temperature change in Los Angeles, CA a. 25°F b. 40°F c. 30°F d. 10°F

Explanation / Answer

Before answering this question I would like to introduce with term isotherms, isotherms are lines which shows a constant value of temp therefore if my isotherm is of 70F it means at each point on this line the temp is 70F and the lines shown on your diagram are isotherms.

1 answer (question 28) : A

Explanation:  During winter (January) the temp of Los angles is 50 F as shown by the 50 F isotherm however in Summer (July) the temp shifts to 75 F so seasonal change occur is 75-50=25

2.answer (question 29): C

Explanation: During winter (Jan) Temp and Miami is 50 and during summer(July) it is approximately equal to 90 so change in temp is 90-50= 40

3.answer (question 30): C

Explanation: During Winter (Jan) the Temp of Regina is 5 F since it lies between isotherm of 0F and 10F and during Summer (July) the temp is 75 F Since it lies between the isotherm of 70 F and 80F so net change is

75F-5F =70F

4. answer (question 31) : A i,e Tropics

Explanation: Tropics is the region which divides the earth into two equal halves it means they lie on the equator of the earth and you know equator receive constant sunlight for the whole year or you can say no change in temp variations which result in no change in seasonal variations.

5 answer (question 32) : C ie over land in the Polar region

Explanation: As I have already explained tropics have very low seasonal variations however Polar regions due to the rotation of earth remain 6 months in continuous sun exposure and for six months face no Sunlight at all so obviously large variations in temp. Now why continent I mean why not polar water, it is because the water has high specific heat capacity so it will lose its heat slowly and remain at particular temp for longer temp, however, the land has low specific heat and lose its heat at once with variations in outer conditions so drastic change in polar continental as compare to polar water region.

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