Concept explainers
Introduction:
The rotation of the earth around the sun is in an elliptical path. The Earth axis is not perpendicular to this plane of ellipse and is tilted at an angle of 23o. This results in changes in daylight, temperature and seasons in different parts around the earth. Summer season occurs when the Northern Hemisphere of the earth is tilted fully towards the sun.
Answer to Problem 1SA
Correct Answer:
The Northern Hemisphere of the earth is tilted mostly towards the sun in the summer season. Hence, correct answer is option b.
Explanation of Solution
Reasons for correct answer:
Summer season is a result of the tilted Northern Hemisphere mostly towards the sun. This makes the Northern Hemisphere to receive more sunlight, and increase in day light. In June, the Northern Hemisphere tilts towards the sun, receiving direct sunlight, resulting in more daylight than the Southern Hemisphere, which is away from the sun.
Hence, option b is correct.
Reasons for incorrect answer:
Option a. is given as, “spring.”
The Northern Hemisphere of the earth is tilted mostly towards the sun in the summer season not in spring. Hence, option a. is incorrect.
Option c. is given as “autumn”
Spring and autumn are results of moving of Northern Hemisphere away from the sun, but not completely towards the sun. Seasonal variations occur due to the tilting of the earth, rotation of the earth and its revolution around the sun. Spring and autumn do not result when Northern Hemisphere tilts mostly towards the sun. Hence option c. is incorrect.
Option d. is given as “winter”
When the Northern Hemisphere experiences winter, it will be tilted away from the sun, but not near. So option d is incorrect.
Hence options a., c., and d. are incorrect
Summer season occurs in the Northern Hemisphere due to its maximum tilting towards the sun. Thus, correct option is b.
Want to see more full solutions like this?
Chapter 43 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
- A. The weathering and erosion in the area happens deep under the soil so the area looks unaffected B. Less sediment flows into the area because the vegetation soaks up all the water and makes its drier. C .the high amount of vegetation in the area causes more roots to hold the soil in place against weathering. D. The high amount of vegetation in the area causes an increase in oxygen causing stronger more stable soil.arrow_forwardWhat would the seasons be like if the axis of rotation of earth was tilted at an angle of 10 degrees instead toward or away from the sun? a. no change b. less exaggerated seasons c. more exaggerated seasons d. there would be no change in the average temperature between the poles and the equator.arrow_forwardAreas approximately thirty (30) degrees north and south of the equator are home to many of the world’s deserts. What happens at these latitudes to cause deserts to form? Group of answer choices a. moist air falls from the upper atmosphere b. mountains block air from the ocean c. dry air rises into the upper atmosphere d. dry air falls from the upper atmosphere e. moist air rises into the upper atmospherearrow_forward
- Unequal evaporation of seawater results in _________________________. a. droughts b. neither c. both d. floodingarrow_forwardAs greenhouse gas levels in the atmosphere decrease, global temperatures __________________________. a. increase b. stay the same c. decrease d. there is no correlationarrow_forwardWhich of the following statements could explain why sometimes when there are clouds in the sky there is no water falling from the clouds? Group of answer choices a. Sometimes the water droplets in the clouds are not heavy enough to fall from the clouds. b. Sometimes the cloud is not in the right location to release rain. c. Sometimes clouds do not have any water in them. d. Sometimes there is not enough wind to release the water droplets from the clouds.arrow_forward
- Which of the following is true about clouds in the summer sky? A. Many of them are made of ice crystals. B. They form at high altitude under great pressure. C. Many of them form at low altitude under low pressure. They are white because little sunlight gets through them.arrow_forwardOver the course of a year, what percent of all the stars on the celestial sphere would an observer at the South Pole be able to see? A. 25% B. The percent varies from year to year. O C. The percent varies depending on the observer's longitude. D. 50% O E. 100%arrow_forwardD45. Trees in the forest cormpete for limited resources like space, sunlight and soil nutrients. Some small plants like grasses and shrubs can't grow well therefore, population decreases.arrow_forward
- 18. What is the dependent variable that impacts the amount of solar energy in a location? A. Equator B. Longitude C. Prime meridian D. Latitudearrow_forwardImagine that humans have significantly reduced the amount of greenhouse gas emissions on Earth, but the planet is still warming due to past emissions. How might solar radiation management be implemented to rapidly cool the planet and prevent further impacts of climate change? a. aerosols can be removed from clouds to decrease the amount of cloud condensation nuclei b. sulfur dioxide can be injected into the stratosphere to decrease albedo c. sulfur dioxide can be injected into the atmosphere to increase albedo d. shipping can be regulated to reduce the cloud condensation nuclei of ship tracksarrow_forwardWhich one of the following is not caused due to the PV power plants? a. Land pollution b. Battery Pollution c. Eyesight problem d. Earthquakesarrow_forward