A depression in the ground due to a cave collapse or acidic water dissolution of limestone is called a A. cave.
B. stalactite.
C. sinkhole.
D. stalagmite.

Answers

Answer 1

Answer:
The answer is (C) Sinkhole because it is happening only to the ground not the top of the cave so that is the only reasonable answer.

Answer 2

Answer: the limestone is sinkhole

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When organisms must compete for resources, they will usually have a ____________ distribution.a. uniform b. random c. clumped d. competitive
Match the following carbohydrate molecules with the class of molecule that they belong to: Molecules;(I) Glucose; (II) Starch; (III) Sucrose Classes: A) Polysaccharides B) Disaccharides C) Monosaccharides A) I-A; II-B; III-C B) I-B; II-A; III-C C) I-C; II-A; III-B D) I-C; II-B; III-A
Changes in allelic frequency are always driven by natural selection.

The speed of nitrogen molecules in the atmosphere (at 20ºC) follows a normal distribution with a mean speed of 500 meters/second and a standard deviation of 50 meters/second.This information best supports which conclusion?A. 84% of the molecules have speeds between 450 meters/second and 550 meters/second.
B. 68% of the molecules have speeds between 450 meters/second and 550 meters/second.
C. 50% of the molecules have speeds between 450 meters/second and 550 meters/second.
D. 34% of the molecules have speeds greater than 550 meters/second.

Answers

This information best supports the conclusion that 68% of the molecules have speeds between 450 meters/second and 550 meters/second. The answer to your question is B. I hope this is the answer that you are looking for and it comes to your help.

68% of the molecules have speeds between 450 meters/second and 550 meters/second is correct option.

How speed of the gases are calculated?

Nitrogen's rms speed will be (4 / 28) = 0.378 of helium's rms speed, yielding a speed of 0.378 1370 m s–1 = 517 m s–1. Now the factor is (4 / 44) = 0.301, resulting in a speed of 0.301 1370 m s–1 = 413 m s–1.

This data best supports the hypothesis that 68 percent of the molecules travel at speeds of 450 to 550 meters per second. B is the solution to your query.

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What are the 4 stages of mitosis and what does each stage do?

Answers

prophase, metaphase, anaphase, and telophase

True/false: individuals with familial Down syndrome are trisomic and have 47 chromosomes

Answers

Final answer:

True, individuals with familial Down Syndrome are trisomic and have 47 chromosomes. This occurs when there's an extra copy of chromosome 21 as a result of a parent carrying a rearranged chromosome, or translocation.

Explanation:

True. Individuals with familial Down Syndrome are indeed trisomic, which means they have an extra copy of a certain chromosome. In the case of Down Syndrome, there's an extra copy of chromosome 21, resulting in a total of 47 chromosomes instead of the usual 46. People inherit this condition through familial Down Syndrome when one parent carries a rearranged chromosome, referred to as a translocation. In this type of Down syndrome, there are three copies (i.e., trisomic) of chromosome 21.

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Electromagnetic technology is used in many different ways today. Which of these are uses of this technology?

Answers

Electromagnetic spectrum is used in electromagnetic technology in making of high-speed trains ,metal detectors,etc.

What is electromagnetic spectrum?

The electromagnetic spectrum consists of radiation which consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.

The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.

In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.The waves are arranged in decreasing order of energy and decreasing order of wavelength.Gamma rays have the highest energy while radio waves have the lowest energy.

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Answer:

metal detectors, high-speed trains, electric generators.

Explanation:

A secure food supply depends on all of the following EXCEPT?Choose one answer.
a. maintaing healthy soil and water
b. increased use of fertilizer
c. safe distribution of food
d. biodiversity

Answers

Let's look at the options

a. maintaining healthy soil and water

This seems like an obvious option, since healthy soil is necessary to produce food. If a soil is not healthy, it will not have enough nutrients to produce plants.
b. increased use of fertilizer

Actually, the use of fertilizer is not necessary, as healthy soil will be enough to produce food. And increasing the use of fertilizer is even more not good, because it can be unhealthy and it can lead to the soil being infertile.

c. safe distribution of food

This is also very important. Imagine if you can produce healthy food, but you cannot deliver it safely to people and the food gets infected with bacteria on the way - then the whole effort is in vain!
d. biodiversity

This is actually very important, because if you have only one species, if this species is hit by a plague, you could loose all your crop! So you need to keep a variety of crops

Which of the following is NOT a characteristic of all living things?a. growth and development
b. ability to move
c. response to the environment
d. ability to reproduce

Answers

Among the given choices one that is NOT a characteristic of all living things: b. ability to move.

Living things have different sizes, shapes, and traits however, they have some characteristics in common such as reproduce , grow or metabolize , respire , feed , are made of cells , and respond to stimuli.

Growth and development: a process that takes place in different stages and depends on the evolution of the body and the essential functions of the organism.
Response to the environment: a function that helps an organism to analyze the stimuli of its environment and respond accordingly
Reproduction: living beings with the same morphological and functional characteristics can be obtained from a living being.
The ability to move: It is not a characteristic of life as some living organisms such as plants do now move or change their position.