Scientists figured out that the outer core must be liquid because S waves do not pass through it, but P waves do. The behavior of P and S waves also indicates that the inner core is solid. The speed of seismic waves also depends on the density of the material through which they are traveling.
Noncommunicable diseases are diseases that last a long period of time and have slower progression than other sicknesses such as a cold, fever, etc. The most common Noncommunicable diseases for example are, Heart Attack, Stroke, Cancer, diabetes, CHD, and asthma.
Answer:
Astronomers can use telescopes to look at very distant galaxies. This is how they see what the Universe looked like a long time ago. This is because the light from distant parts of the Universe takes a very long time to reach us. From these observations, it seems the physical laws and constants of the Universe have not changed.
Physicists are currently unsure if anything existed before the Big Bang. They are also unsure whether the size of the Universe is infinite.
Answer: Yeast
Explanation:
Microbes are referred to as tiny living things which can found in soil, water and in the air. Microbes can also be called microorganisms. Some microbes are vital to our health while some can make us sick.
The microbe that is used to extract ethanol from fruit juice and sugar molasses is yeast. Some yeast metabolize the sugar that is contained in fruit juices and molasses.
A scientist is examining the role of an element found in fats and carbohydrates of living things. This element makes up 65% of human body mass.
Which statement describes the element he is studying?
A scientist is examining the role of an element found in fats and carbohydrates of living things. This element makes up 65% of human body mass.
Which statement describes the element he is studying?
