Answer:
The spectral types and sub-classes represent a temperature sequence, from hotter (O stars) to cooler (M stars), and from hotter (subclass 0) to cooler (subclass 9). The temperature defines the star's "color" and surface brightness. ... Stars are also classified by luminosity class.
Explanation:
According to sources, the most probable answer to this query is that poor delivery service if not well executed can have various effects on the social, economic and environmental problems. Such as increasing the cost value and reducing efficiency (economic), reduce consumer (social) and increase waste (environmental) production.Thank you for your question. Please don't hesitate to ask in Brainly your queries.
<span>the most abundant type of rocks on earth are classified as - </span>a. igneous
Answer:
<h2>BIOSPHERE</h2>
Explanation:
Human beings like animals or plants are part of the biosphere, one of the spheres in the earth.
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Answer: A. the mid-ocean ridges
Explanation:
The features that form the longest mountain range on Earth is the mid-ocean ridges and spans about 40,389 miles around the earth.
The mid-ocean ridge has about 90% of its system under the ocean. They are formed as a result of the movement of tectonic plates.
