Answer:
(A) rate=
Sp
Ss
st
Explanation:
The rate of chemical is a measure of the speed of a chemical reaction.
The measurement of the reaction rate is based on the disappearance of a reactant or appearance of a product with increasing reaction time.
Reaction rate is usually expressed in terms of a change in concentration of the chosen reactant or product per unit of time.
During a reaction, the concentration of the reactant decreases exponentially with time while that of a product increases exponentially with time.
Reaction rate = 
<span>Noctilucent clouds (sometimes known as night clouds or mesopheric clouds) form in the mesosphere, a layer of the atmosphere located 47-59 miles above the Earth. </span>
Cells because all living organisms have cells
Answer:
I read about this earlier im pretty sure its The "They need oxygen" part
Explanation:
:)
Astrology
Explanation:
A person studying the field of Astrology would not have her finds testable by others because most are descriptive and not experimental in nature.
Astrology is a pseudoscience claiming divination by the positions of the planets and sun and moon.
- It is simply the study of stars and their patterns.
- Most astrologers use positions of planetary bodies to predict future events and some topical matters.
- Astrology is not pure experimental science that can be tested using sophisticated instruments in the laboratory or in the field.
- Biology is the study of life and follows the scientific way of studying nature.
- Chemistry and physics are pure sciences that follows the scientific nature in their investigation.
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