Air can be considered a ____________ of gaseous elements and compounds.
A) heterogeneous mixture
B) homogeneous mixture
C) colliodal solution
D) suspension

i need all answerd please! this is all the points i have. A college professor hypothesizes that readers will comprehend more when reading a graphic novel than when reading text with no illustrations. To conduct an experiment, the professor will assign some students to the control group with a reading assignment in paragraph form and other students to the treatment group with a reading assignment in graphic novel form. Afterwards, all the students will take a quiz about the reading to measure comprehension. To assign the groups, the professor will split the students into five groups according to their current grade in the class: A, B, C, D, or F. Within each group, half of the students will be assigned to the treatment group with the graphic novel, and the rest will be assigned to the control group with the paragraph.The characteristics of the treatment and control groupsshould be roughly equivalent because the students are from a randomly chosen class.might not be roughly equivalent because the students could have vastly different views about graphic novels.should be roughly equivalent because both groups have a mixture of students with different current grades.might not be roughly equivalent because the students were not labeled and randomly chosen for each group. Active Identifying Structures in the Cell Identify the labeled structures. A,B,C,D,E How much pressure does the photic zone have? Which ordered pair is a solution of the equation?-2 - 4y = -10 Consider a cylindrical pipe with both ends open and fundamental resonance frequency 150 Hz. If this particular pipe has a length of L, what the wavelengths of three lowest modes produced by this pipe? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a. L,2L, 3L b. 2L, L, 2L/3 . 2L/3, L, 2L d. L, L/2, L/3 e. 4L, 24, 4L/3 f. 4L, 4L/3, 4L/5 g. Neither of above. Which of the following shows the solution to the inequality 1/2x31? I need help on this question ASAP give you 20 points Jada's baby brother walked 3 feet, andthen half that length again. Which of the following are examples of cultural sensitivity in the workplace? a. Discussing religion in the workplace b. Telling jokes about different people and their beliefs c. Talking about a fellow workers love life d. Respecting that a coworker doesnt eat certain foods. e. Making inappropriate remarks about someones cultural dress or attire f. All of the above g. None of the above Find the value of X, I need help solving this While antiviral treatments have drastically improved life expectancy and quality of lifefor people living with Human Immunodeficiency Virus (HIV), preventing HIV infectionis still the primary goal.The enormous genetic diversity of HIV is largely the result of its and it has madeit especially difficult to create a(n) against the virus.Fhigh mutation rate; antibioticG high mutation rate; vaccineHlow mutation rate; antibiotic)low mutation rate; vaccine HELP PLEASE IM BEGGING YOU Estos pantalones son caros, pero _________ son baratos. A. aquel B. aquellas C. aqullos D. aqullas 30 POINTS!!!!!!!!!!! tell what each of these people is doing to him/herself what type of energy is mowing a lawn ? quick pleaseeeeeeeeeeeeeeeeeeeee Which of the following best explains the Law of Conservation of Mass?Group of answer choices:A. In a chemical reaction the mass of the products is less than the reactants mass.B. In a chemical reaction the mass of the products cannot be determined from the mass of the reactants.C. In a chemical reaction mass of products always equals the mass of reactants.D. In a chemical reaction the mass of the products is greater than the mass of reactants i just need the boxes filled up i need help What is the solution to the equation 4(2-x)=5x-17 why was york troubled at first by his draft notice