Answer: Longitudes determine the current time of one location compared to the current time of other locations.
Explanation: To be able to standardize time around the world, diplomats considered the following:
- The Earth is a sphere. Therefore, when it rotates, it rotates 360º.
- Those 360º can be divided evenly into 24 hours and make 15º per hour.
- In other words, for every 15º of rotation, one hour passes.
The world was consequently divided into longitudes of 15º for every hour - time zones. Time zone 0 was the Greenwich Meridian. Every longitude to the east of the Greenwich Meridian is +1 time zone. Similarly, every longitude to the west of the Greenwich Meridian is -1 time zone.
As a result of the establishment of time zones using longitudes, times in different locations can be compared to one another. To illustrate, when a friend in New York says, "Let's call at 8:00 AM my time," to his friend in Los Angeles, the friend in Los Angeles can object and say, "8:00 AM Eastern Standard Time is 5:00 AM Pacific Time. I'm sleeping then, you inconsiderate baboon!"
Answer:I can't answer it if there's no options
Explanation:
Surface mining. They use large trucks and shovels to extract the oil sands. Only 20% of all oil sands are close enough to the surface to be mined.
Answer:
<u>Yes, earth is a dynamic planet and the three concentric layer are core, mantel and crust</u>.
Explanation:
- Earth is a dynamic planet as it changes regularly, and this dynamism is a product of the earth rotation on its axis and a regular flow of energy from the internal to the external surface of the earth. Earth being formed about more than 4.5 billion years ago.
- The formation has created various layers of within the earth so dynamic that they need to be understood by modelling the earth. Earth is itself a form of geoid and is composed of rare earth and various other life-supporting elements that are not found on other planets to date.
- Earth's three concentric layers namely Core, Mantle, and Crust are all wrapped around layers of rocks that have transition layers separated by some discontinuity zones.
- The crust has a composition of lighter silicic rocks, composed of both continental and oceanic rocks of different ages, similarly, the mantel is composed of molten rocks that in their due course of time have solidified to form the upper and lower mantle. There thickness changes with varying depths.
- The core is made up of rock that has heavy metals like nickel and iron and also divided into the inner and outer core with varying densities of 9900 to 12,200.
Answer:
Earth's surface is the major direct source of heat for the troposphere, but nearly all of that heat comes originally from the sun. Earth's surface absorbs sunlight and radiates it back into the atmosphere as heat.