Concept explainers
Videos
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 1SQ
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 and Applications (MindTap Course List)
- This entire structure using lifecycle terminology is called what? megastrobilus microstrobilus megasporophyll microsporophyll microsporangium megasporangium none of thesearrow_forwardHow much protein should Sarah add to her diet if she gets pregnant? Sarah's protein requirements during pregnancy would be higher. See Hint B2. During calculations, use numbers rounded to the first decimal place. In your answer, round the number of grams to the nearest whole number. _______ g ?arrow_forwardC MasteringHealth MasteringNu X session.healthandnutrition-mastering.pearson.com/myct/itemView?assignment ProblemID=17396422&attemptNo=1&offset=prevarrow_forwardMost people, even those who exercise regularly at low to average intensity (1 hour at the gym or a 2- to 3-mile walk several times per week), do not need an increased protein intake. What would be the protein needs of a man named Josh who exercises moderately and is the same age and size as Wayne? Josh is 5 ft, 8 in tall and weighs 183 lb. Round the number of grams to the nearest whole number. During calculations, use numbers rounded to the first decimal place. Because protein requirement is a range, please enter two numbers: lower and upper range values, respectively. Separate the lower and upper range values, in that order, by a comma. ___, ___ g ?arrow_forwardC MasteringHealth MasteringNu X session.healthandnutrition-mastering.pearson.com/myct/itemView?assignment ProblemID=17396422&attemptNo=1&offset=prevarrow_forwardIf left untreated, most HIV-infected individuals will develop AIDS. Current treatments are focused on highlyactive antiretroviral therapy (HAART). HAART usually consists of an orally delivered drug cocktail containingtwo different reverse transcriptase inhibitors and one other drug, such as a protease inhibitor. Question: Develop a pharmacokinetic model of HAART treatment. Consider all 3 drugs. Make sure to include adiagram that illustrates your thinking, state all assumptions, and define your variables. Whatparameters would you need to know to find the concentration of drug in the plasma? In the T cells?(You do not need to write out or solve any equations.)arrow_forwardnot use ai pleseaarrow_forward(A) 25 20 20 15 NPP (Mg C/ha/yr) 10 10 5 0 0 2,000 4,000 6,000 ECOLOGY 4e, Figure 20.11 (Part 1) 2017 Sinauer Associates, Inc. Average annual precipitation (mm) 8,000arrow_forwardexplain the cascade of events (starting with relaxing trade winds) that occurs during El Niño in the eastern Pacific (off the coasts of California/North America and Peru/South America) and which lead to food-chain collapse - start with changes in the physical/oceanographic conditions, andthen systematically describe the cascading effects at each level of the food chain -arrow_forward3) Which statement(s) about the Pacific Decadal Oscillation (PDO) is/are TRUE? CIRCLE ALL THAT APPLY. A. It is a major driver of salmon populations in the Pacific B. It affects sea surface temperatures in the eastern Pacific C. Its cycles typically do not last as long as those of ENSO D. Evidence that it has occurred over many centuries has been gathered from tree ring dataarrow_forward4.arrow_forward2arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_iosRecommended textbooks for you
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning- Understanding Health Insurance: A Guide to Billin...Health & NutritionISBN:9781337679480Author:GREENPublisher:Cengage
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningUnderstanding Health Insurance: A Guide to Billin...Health & NutritionISBN:9781337679480Author:GREENPublisher:CengageHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning