A star’s life expectancy depends on its mass. Generally, the more massive the star, the faster it burns up its fuel supply, and the shorter its life. The most massive stars can burn out and explode in a supernova after only a few million years of fusion. A star with a mass like the Sun, on the other hand, can continue fusing hydrogen for about 10 billion years. And if the star is very small, with a mass only a tenth that of the Sun, it can keep fusing hydrogen for up to a trillion years, longer than the current age of the universe.
Answer:
<u><em>Ancestors</em></u>
Explanation:
Ancestors can be described as the persons from which a particular human being originated. In a broader perspective, it is referred to family history of a person. Scientists believe that all organisms on Earth originated from a common ancestor which were the prokaryotes. The prokaryotes with time gave rise to the eukaryotes. Common descent is the phenomenon in which organisms having common ancestors are referred.
Sunscreens contain chemical ingredients in their compositions, such as avobenzone, oxybenzone, octocrylene, homosalate, octisalate and octinoxate, which have been linked to health problems such as hormonal disruptions, cancer, as well as liver and kidney changes.
<h3>What is oxybenzone, octocrylene, and homosalate bad for?</h3>
Oxybenzone, octocrylene, and homosalateto protect from UVA also penetrates deep into the skin. The penetration into the human body can cause several problems in human health such as
- allergic reactions
- cell mutation
- deregulation of hormonal processes,
- etc.
With this information, we can conclude that Oxybenzone, octocrylene, and homosalateto is considered a hazardous eye irritant and, as an allergen, is also known to cause skin allergies.
Learn more about Sunscreens in brainly.com/question/20448560
#SPJ
The first answer is the correct one. Osmosis is only water and diffusion is everything else across a semi-permeable membrane.
