When it is noon along 82° 30’ E longitude along what degree of longitude it will be 6.30 a.m.?
Correct Answer:
(C)
At 0° East or West
When there is midday at 82°30' E longitude then 6.30 in the morning means there is the difference of 5:30 hrs in a time. As in one hour, change in longitude is 15° therefore 82°30' difference in 5:30 hours are 82° 30' – 82° 30' = 0° latitude.
Ques:
22
If the difference of longitudes for the two places is 90°, the time interval between these places will be –
Correct Answer:
(B)
6 hr
Generally, 1° longitude is equal to a difference of 4 minutes. 90° longitude means 90 × 4 = 360 minutes or 6 hours. Hence, (b) is the correct answer.
Ques:
23
Which one of the following longitudes along with the Prime Meridian forms a great circle on the globe.
Correct Answer:
(D)
180°
The Prime Meridian is the Zero degree line of longitude that passes near London. The Prime Meridian was accepted as Zero degrees longitude at an International conference in 1884. It is also known as Greenwich meridian. Just opposite to 0° longitude there is an Imaginary line located at about 180° E or W, as International Date Line which forms great Circle with Prime meridian along the Globe.
Ques:
24
Which one of the following has geographical position of 0° latitude and 0° longitude?
Correct Answer:
(A)
In the South Atlantic Ocean
Null Island is a name for the area around the point where the prime meridian and the equator cross, located in the Gulf of Guinea (South Atlantic Ocean) off the west African coast. It has geographical position of 0° latitude and 0° longitude
Ques:
25
Which of the following scholar has suggested that the Earth has originated from the gases and the dust particles–
Correct Answer:
(D)
O. Schmidt
James Jeans is related to the tidal hypothesis of the origin of Earth. F. Hoyal and Littleton presented Nova hypothesis and Otto Schmidt gave the hypothesis of gas and dust for the genesis of Earth. According to this hypothesis, large quantities of gas and dust particles captured by the gravitational force of the sun formed the Earth.
Ques:
26
Which of the following Method is used to determine the age of the Earth –
Correct Answer:
(C)
Uranium dating
The uranium dating method is used for determining the age of Earth.
Ques:
27
Great Ice-Age is related to :
Correct Answer:
(A)
Pleistocene
The Pleistocene Epoch was the time during which extensive ice sheets and other glaciers formed on the landmass. This time period has been informally referred to as the “Great Ice Age” and began about one million years ago or more.
Ques:
28
Which of the following periods has generally been considered to be the 'Little Ice Age'?
Correct Answer:
(C)
1650 A.D. - 1870 A.D.
Little Ice Age is a period between 1300 A.D. to 1870 A.D. during which Europe and North America were subjected to much colder winter than during the 20th century. Thus (c) is the correct option.
Ques:
29
What was the period of the Dinosaurs?
Correct Answer:
(B)
Eighteen crore years ago
The time of existence of dinosaurs is estimated 20.8 Crore years ago and ended by 14.4 crore year ago. Its remains were found at Rahioli in Kheda district of Gujarat and Barashimla hills of Jabalpur M.P. Thus, the correct answer is option (b).
Ques:
30
Consider the following events.
First reptiles
First insects
Shelled animals
First mammals
Arrange the above events in Chronological order of their origin on the earth and select the correct answer from the codes given below :
Code :
Correct Answer:
(C)
3 2 1 4
The right chronology is –
(1) Shelled Animals
(2) First insects
(3) First reptiles
(4) First Mammals.