C.
Answer the following questions:
1. What do you know about the Earth's axis?
in what way the Earth rotates and with what speed?
3. How long does the Earth take to complete one round of rotation?
4. is the Earth's axis vertical? If not, what is its position?
5. When does a place have its mid-day and mid-night?
6. When does a place have its sunrise and sunset?
7. How long does the Earth take to go around the Sun?
8. What is a leap year? Explain with example.
9. Which season is followed by autumn in the northern half of the Earth?
10. During which months do we have spring season in India?
11. Which dates have exactly equal days and nights in the year all over the world?
12. Where are day and night of 6 months duration each and why?
Where are day and night always of almost equal length and why?
14. Which two uniform seasons occur due to the Earth's revolution and how?
13.
Answers
Answer:
1)Earth spins on its axis once in every 24-hour day. At Earth’s equator, the speed of Earth’s spin is about 1,000 miles per hour (1,600 km per hour). an axis refers to the imaginary line that an object, usually a planet, rotates around. Earth rotates on its axis from west to east
3)24 hours
4)The axis of the Earth is vertical at an angle of 66½° from equator .
5)attachment
6)When earth has completed half the rotation and is facing the sun it experience mid day.
When earth has completed the rotation and is facing the sun it experience mid day.
Midnight is the transition time from one day to the next
7)One complete orbit takes a little bit more than 365 days. This means that t hat the Earth revolves around the sun in 365 days, 5 hours, 59 minutes and 16 seconds exactly. The time a planet takes to revolve around the sun is called a year
8)Leap years are years where an extra, or intercalary, day is added to the end of the shortest month, February. The intercalary day, February 29, is commonly referred to as leap day. Leap years have 366 days instead of the usual 365 days and occur almost every four years. Leap years have 366 instead of 365 days. Finding a year is leap or not is a bit tricky. We generally assume that if a year number is evenly divisible by 4 is leap year. But it is not the only case. A year is a leap year if −. It is evenly divisible by 100. If it is divisible by 100, then it should also be divisible by 400.
2020 is a leap year
9)In Northern Hemisphere Here, the Autumn season comes after the summer season, and regions experience autumn during September. At this time, the southern hemisphere experiences the spring season.
10)The spring season in India is in the months of March and April, it is considered as one of the beautiful seasons in the country. The average temperature in spring is 32 °C.
11)The day and night are only nearly equal on the September equinox and the March equinox. In fact, most locations on Earth tend to enjoy more daylight hours than nighttime hours on these two days of the year, thanks to the Earth's atmosphere and our definition of sunrise and sunset.
12)The pole experience about six months day and six months night. The axis of the earth is tilted, due to which the sun continuously either shines or cannot be seen for a long time here. Although the earth rotates and day changes into night and night into day at other places, but the poles remain under the same stage for a much longer time due to the tilt.
On the equator, the day and night stay approximately the same length all year round, but the day will always appear a little longer than 12 hours, due to the reasons below. On the equinoxes, the geometric center of the sun is above the horizon for 12 hours, and you might think that the length of the day (hours of daylight) would be 12 hours too.
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Explanation:
