The mass number of an element is equivalent to the number of Protons and Neutrons in the element. For example Oxygen has eight protons and neutrons, therefore its mass number is 16. You could also calculate this by simply rounding the atomic weight of the element to the nearest whole number. Oxygen's atomic weight is 15.994, which as you can see, would be rounded to 16 :)
Answer:
The luminosity of both the stars is same star A is closer to the planet Earth as compared to star B.
Explanation:
From the mentioned case we can infer that the most accurate relation between the stars and the astronomer on earth observing for over a period is that the luminosity of the stars is same.
The more drawn out the pulsation time frame, the more brilliant the star. The period-luminosity connection for old style Cepheid was found in 1908 by Henrietta Swan Leavitt in an examination of thousands of different stars in the Magellanic Clouds.
Answer:
Biome
Explanation:
Typically, in ecology we classify a large area with similar flora and fauna throughout its boundaries as a biome. These biomes have a relatively similar climate and terrain throughout their “borders” .This means that even though biomes can generally be similar on Earth, they're not all the same.
XD XD XD XD XD XD XD XD XD XD XD XD
Answer:
Explanation:Destruction of natural vegetation is primarily caused by deforestation. Other major causes are wildfire and over-exploitation. Deforestation not only occurs as a result of firewood extraction by the local population but also as a result of the creation of arable as well as pastoral land.
