Yes it is
The coldest layer of the Earth is the lithosphere, which includes the Earth's crust and the upper part of the mantle. Temperatures in the lithosphere increase with depth, but it is still the coldest layer compared to the inner core, outer core, and lower mantle.
The coldest part of the Earth's core is the outer core, specifically at its boundary with the mantle. Temperatures in the outer core can range from about 4,000 to 6,000 degrees Celsius, but the transition zone at the outer core-mantle boundary is relatively cooler compared to deeper layers. However, the inner core, despite being extremely hot, can have cooler areas at its outer edge, where it is solidified. Overall, the outer core is generally considered the coldest region of the core.
No, Earth's crust is not the coldest layer. The crust is relatively cool compared to the underlying mantle and core, but it can still experience significant temperature variations depending on depth and location. The coldest temperatures on Earth are found in the atmosphere, particularly in polar regions and at high altitudes, while the mantle and core are much hotter, with temperatures increasing with depth.
Well in every part of the Earth there is different temperatures so you can't really tell what the whole Earth temperature has been in it's coldest.
inner core
The Mantel is the part of the core that is liquid.
The Earth's core has the greatest density. The inner core, composed mainly of solid iron and nickel, is even denser than the outer core, making it the densest part of the Earth.
core?
The outer core of the Earth is part of the Earth's interior structure model. It lies between the Earth's inner core and mantle. The outer core is composed of molten iron and nickel, and its movement generates the Earth's magnetic field.
The yellow part of the Earth is called the inner core. It is a solid ball of iron and nickel at the center of the Earth, surrounded by the outer core, mantle, and crust.
The answer will depend on core of WHAT: the sun, the earth, an apple?
The answer will depend on core of WHAT: the sun, the earth, an apple?