The appropriate answer is a. the temperature is high enough but pressure low enough to melt iron. The earth's core is composed of two layers; the inner and outer core. Both layers are composed mainly of iron and nickel. The main difference between the two layers is that the inner core is solid and the outer core is liquid. The inner core is solid because of the pressure created by the overlaying layers; the outer core, mantle and the crust. The inner core is however hotter than the outer core.
Separate Layer it's part of the "Atmosphere layers"
Explanation:
caring of earth ia necassary because to reduce the misuse of air,water,land,forest,minerals with affects the earth and result in problems luke global warming,climatic changes,scarcity of food etc.thus brief caring for the earth means life for everyone
Answer:
Class 8
What are natural resources?
How does land fulfil our needs?
Name a few landforms.
What are the factors that determine the pattern in which a particular region is used?
Mention some methods that are used to conserve soil?
Class 7
Name the brightest flower on tall trees.
How is natural vegetation classified?
Why do type and thickness of natural vegetation vary from place to place?
Write down the features of Tropical Evergreen Forests.
Write the features of Tropical Deciduous Forests.
Where are Temperate Evergreen forests located?
Which region is called the “orchards of the world” and why?
Write major features of Mediterranean Vegetation.
Explain major features of Tundra Type of Vegetation
