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Lelu [443]
4 years ago
5

Hai has been taking expensive beta-carotene supplements for years, because he believes they will reduce his risk of cancer. hai

has just learned that a well-controlled study published in the prestigious new england journal of medicine showed that beta-carotene supplements do not reduce cancer risk. hai is probably experiencing
Biology
1 answer:
Salsk061 [2.6K]4 years ago
3 0

an emotional dilemma or cognitive dissonance

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One advantage of a pressurized water reactor is the separation of water that is near radioactive material and the water that is
mel-nik [20]

True:

Advantages. PWR reactors are verystable due to their tendency toproduce less power as temperatures increase; this makes the reactor easier to operate from a stability standpoint. PWR turbine cycle loop is separate from the primary loop, so the water in the secondary loop is not contaminated by radioactive materials.

3 0
3 years ago
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This sample is naturally occurring, inorganic, solid, has a square crystal structure, and a definite chemical composition (NaCl)
Alika [10]

Answer:

A Mineral is defined as an inorganic, naturally occurring, homogenoussolid, with a definite chemical composition, and ordered (crystalline) atomic structures.

Explanation:

Inorganic: Involving neither organic life nor the products created from or by organic life.

Naturally Occurring: Must be formed by natural processes, meaning a mineral cannot be manmade, manufactured, or created in a laboratory.

Homogeneous Solid: A mineral must be chemically and physically uniform down to the atomic level.

This homogeneity means that the mineral will have absolutely predictable physical properties

including hardness, density, and streak.

Definite Chemical Composition means that all occurrences of that mineral have a chemical

composition that varies within a specific limited range and the atoms that make up the mineral must

occur in specific ratios.

Ordered Atomic structure (Crystalline): The atoms in a mineral are arranged in a systematic and

repeating pattern. Glasses such as obsidian, which are disordered solids, liquids (e.g., water,

mercury), and gases (e.g., air) do not have a crystalline structure and are therefore not minerals.

5 0
2 years ago
The researchers predict that for any particular concentration of substrate the c aurantiacus enolase catalyzed reaction is more
UNO [17]

Answer:

because increase in temperature will increase the enzyme catalyzed reaction.

Explanation:

As the temperature increases the kinetic energy of molecules increases means the collision between substrate and enzyme increases that is substrate attached to its appropriate active site of enzyme which results in increase in reaction. But if temperature is too high it can denature the enzymatic activity.

In catalyzed reaction increase in temperature will loosen the bond between molecules which results in catalyzation.  

8 0
3 years ago
What happened during the Pleistocene to cause global cooling?
musickatia [10]

Answer:

B Low Solar Activity

Explanation:

Fluctuations in the amount of insolation (incoming solar radiation) are the most likely cause of large-scale changes in Earth's climate during the quaternary.

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3 years ago
Why is it important to have complex carbohydrates before a big race?...30 POINTS AND BRAINLIEST....
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It is so important because complex carbohydrates give you the most energy
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3 years ago
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