Although nitrogen gas makes up 78% of the atmosphere, we can't use it because of what

Answers

Answer 1

Its unreactive, nitrogen is held together by very stable chemical bonds and they must be broken apart first

Related Questions

active immunity involves a person becoming immune to a pathogen as a result of having a disease. a) true b) false

Answers

The given statement "active immunity involves a person becoming immune to a pathogen as a result of having a disease" is true.

Active immunity is the acquired immunity that the body has produced against a pathogen after an antigen's exposure. Immune cells and antibodies are formed during active immunity in response to the presence of a pathogen (such as a virus or bacteria).This happens in two ways: A person can develop active immunity by getting a disease or by getting a vaccine that contains a weakened or dead version of the pathogen.

As a result, active immunity is a natural process, while passive immunity is obtained through external means (e.g., vaccines, antibodies).In a way, when a person is infected with a disease, the immune system is alerted and produces an immune response. The immune system identifies the pathogen and makes a note of it to remember how to fight it if it enters the body again. Hence, the person becomes immune to the pathogen.

To know more about immunity visit:

https://brainly.com/question/32453970

#SPJ11

true or false? the cross-price elasticity of demand between butter and margarine is positive.

Answers

True. The cross-price elasticity of demand between butter and margarine is positive, indicating a substitute relationship between the two products.

When the price of butter increases, consumers tend to switch to margarine as a lower-priced alternative, leading to an increase in the demand for margarin.To understand why the cross-price elasticity of demand is positive, we need to consider the concept of substitutes. Butter and margarine are often considered substitutes for each other because they serve a similar purpose as spreads and have similar taste profiles.When the price of butter rises, consumers may find it less affordable and seek a cheaper alternative. Margarine, being a lower-priced option, becomes relatively more attractive. As a result, consumers increase their demand for margarine, causing the positive cross-price elasticity.Conversely, if the price of butter decreases, consumers may be less inclined to switch to margarine since butter becomes more affordable. In this case, the cross-price elasticity would be negative or zero, indicating a weak or no substitution effect.

Overall, the positive cross-price elasticity between butter and margarine suggests that they are indeed substitute goods.

For more such question on elasticity of demand

https://brainly.com/question/1048608

#SPJ8

Fill In The Blank, harrison wants to show a human brain for his speech, but using an actual brain is impractical, difficult to obtain, and a biohazard. the most similar alternative is _______.

Answers

Harrison wants to show a human brain for his speech, but using an actual brain is impractical, difficult to obtain, and a biohazard. The most similar alternative is a 3D model. Using the brain's image as a base, 3D modeling software can be used to create a 3D model.

The most realistic way to create a 3D model of the human brain is to use an MRI machine to scan the brain and create an image. Using that image as a base, 3D modeling software can be used to create a 3D model. There are many software packages available for 3D modeling, including some that specialize in brain imaging. Once the model is created, it can be printed on a 3D printer, allowing for a physical model that can be used in presentations and speeches.

Learn more about MRI machine

https://brainly.com/question/21405582

#SPJ11

in a mixed lymphocyte reaction the donor cells are irradiated to ensure that they do not _____.

Answers

In a mixed lymphocyte reaction (MLR), the donor cells are irradiated to ensure that they do not proliferate or divide, and to prevent rejection. The correct option is C. Proliferate.

In a mixed lymphocyte reaction, T cells from two different people are cultured together. A mixed lymphocyte reaction (MLR) is a laboratory technique for determining the compatibility of T cell surface antigens from different people.

The cells of two people are mixed in a mixed lymphocyte reaction to see how they will react.

The amount of proliferating T cells is proportional to the degree of histoincompatibility between the two populations when there is a rejection response. Irradiation is a method of preventing T cell division and proliferation.

Learn more about lymphocyte here ;

https://brainly.com/question/33557560

#SPJ11

The researchers list all of the heart attack patients and measure the cholesterol level of every 25th person on the list. What kind of the sampling is this?

Answers

The given type of sampling method is systematic sampling. A statistical method of choosing a random sample from a larger population is known as systematic sampling.

Systematic sampling is a random sampling technique in which each element in the population is assigned a number, and then every nth element is chosen from the population for inclusion in the sample. It is one of the probability sampling techniques. When a researcher takes a systematic sample, they must first determine the appropriate sample size, then select the first individual in the sample at random.

After the first individual has been selected, the researcher takes every kth individual, where k is the fixed interval. The researchers list all of the heart attack patients and measure the cholesterol level of every 25th person on the list is an example of systematic sampling because the selection of the samples is done based on an ordered system in which every 25th person is selected.

To know more about systematic sampling visit:

https://brainly.com/question/28807640

#SPJ11

systemic distribution of cancer cells to other sites of the body through the bloodstream or lymph is a process known as __

Answers

The process of systemic distribution of cancer cells to other sites of the body through the bloodstream or lymph is known as metastasis.

What is Metastasis?

Metastasis is the term used to refer to the spread of cancer cells from the original cancerous site (primary site) to other sites in the body via the bloodstream or lymphatic system. Metastasis is an important feature of malignant tumors, which distinguishes them from benign tumors, which do not spread beyond the original site of the cancerous cells. When cancer cells migrate to a new area of the body and begin to grow there, the resulting tumor is referred to as a secondary or metastatic tumor.

Metastasis is one of the most dangerous aspects of cancer. It can lead to the formation of new tumors in other areas of the body, making it much more difficult to treat. Additionally, metastasis can cause damage to important organs or other tissues, which can lead to a variety of complications and even death.

Learn more about Metastasis here: https://brainly.com/question/28266624

#SPJ11

Other Questions

It shortens the life of the engine parts , changes the behavior of combustion , and impairs lubricationWhat effect does excessive heat have on reciprocating engines ? Which of these is another way to write 0.025 ? A 25% B 1/4 C 2.5% D 25/100 Based on the model N(1155,83) describing steer weights, what are the cutoff values for a) the highest 10% of the weights? b) the lowest 20% of the weights? c) the middle 40% of the weights? Given the following marks: \[ 75,92,84,51,78,96,72,88,99,81 . \] If you are asked to develop a stem-and-leaf diagram from these marks, how many stems will be used? A. 3 B. 2 c. 10 D. 5 R E. 4 Fill in the blank with the recursive function. Be sure to include the starting point.Ashley has 100 books that she wants to give away at the rate of n books per week. Write a recursive function that represents the number of books Ashley has at any time.The recursive function that gives the number of books Ashley has at any time is ____ = _____, starting at ____ (I have this answer already, it is 100.)100.Every other response to this has been unsatisfactory, so I will elaborate further. This is on PLATOWEB. If you're a student cramming and reading this for the answer, hi. Elizabeth Proctor unknowingly keeps the court from believing her husband's story about Abigail's lies because she: calls John a liar and accuses him of witchcraft. lies and says that she did not fire Abigail because she had an affair with John. None of the choices are correct. admitted in court that she knew about Abigail and John's affair. tells the court that John made the poppet that Mary Warren brought her. the ground-state electron configuration of a mn2 ion is 1s22s22p63s23p63d5. therefore, mn2 is It takes a barber 5 minutes to serve one customer. Round your answer to two decimal places.a. What is the capacity of the barber expressed in customer per hour?b. Assuming the demand for barber is 7 customer per hour, what is the flow rate?c. Assuming the demand for the barber is 7 customers per hour, what is the utilization? (percent)d. Assuming the demand for the barber is 7 customers per hour, what is the cycle time? (minutes) please help1. How many significant figures do the following numbers have? a. 0.00345 b. 9.8 10^{-23} c. 340 d. 456.00 e. 3009 in the design of the symbol of st. matthew from the book of durrow the influence of patterns used in __________can be seen. Explain marketing strategy , in YOUR OWN WORDS, the answers to the questionsWhat are we selling? (Product, service, ideas, client proposal)Who are we selling to? (Target customer, new and existing)How to reach and serve the target market? (Marketing tools, coverage, distribution chains, clients relationships)Where are we promoting our products? (Customers, target product, clusters, network/ association) Given the lack of IT support, books and other items use an old-fashioned approach in which, prior tocheckout, a paper library book card (different from the patrons library membership card) is included ina pocket attached to the item. When the patron presents an item to check out, the librarian removes the card, selects a rubber datethe stamp that displays the future date when that type of item needs to be returned to the library, andstamps that date on the card. Note that different types of items have different loan durations, so each day the librarians need multipledate stamps with different future date sets, or they need to change a single date stamp repeatedly.Once the library book card is stamped with the due date, the librarian writes down the patrons nameon the card and places it in a checkout card bin. The librarian stamps the book with the samereturn due date (to remind the borrower). Name the line of reflection used to map each preimage to its image. x=-2 y=-2 y-axis x-axis 8. List the criteria to consider when selecting a data structure to implement on an ADT 9. List three advantages of creating ADT implementations Compute the runtime to sort for each data set using proper formula:100, 99, 98, 97, 96, 95, . 3, 2, 1 , using Insertion sort algorithm5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, using Selection sort algorithm1000 data given in reverse (decreasing order) order using Merge Sort algorithm500 data given in sorted order (increasing order) using Bubble sort algorithm.1000 data given in random order using Insertion sort algorithm.Must write down the formula first and then plug-in the proper value for N (no of data) Which of the following would be included under Scheduled Farm Personal Property? A. Livestock B. Fence C. Trees D. Chutes which statement about trna molecules is false? group of answer choices a, c, g, and u are the only bases present in the molecule. What are some concurrent powers ? Write code that reads in values for variables numLemons and numpears (in that order) and then outputs as shown below. End with a newine. Exif the input is 4.3, then the output is: Ny recipe needs 4 1emons and 3 pears. 1 include siostrearo 2 using nanespoce std; 4 int mainO i int numlenons; int numpears: 1/ our tests will run your progran with inputs 4 and 3 , then run agoin with other inpouts. 1/ Your progrom should nonk for any input, though. Vour code goes here % return 8; \} You are hired for a very special job. Your salary for a given day is twice your salary the previous day (i.e. the salary gets doubled every day). Your salary for the first day is 0.001 AED. Assuming you do not spend a single penny of the gained salaries, write a method which returns the number of days in which your fortune becomes at least as large as your student ID (in AED). The ID should be passed as argument to the method (you are required to present only one test case for this exercise: your ID).ID=2309856081. Return: 43.***In java language please***