Answer the following question given this paragraph: Regardless of what gravity is a force between masses or the result of curves in space and time the effects of gravity on motion are well known. You already know that gravity causes objects to fall down to the ground. Gravity affects the motion of objects in other ways as well. Q: What is the force that causes objects to fall down to the ground? Choices: - velocity - pull - motion - gravity A:
gravity
Answer the following question given this paragraph: Like a gas, plasma lacks a fixed volume and shape. Unlike a gas, it can conduct electricity and respond to magnetism. Q: Does pressure increase or decrease when gas particles heat up? Choices: - decreases - stays constant - stagnates - increase A:
increase
Q: Answer the following question given this paragraph: Q: Because plants are relatively immobile, they can function with bulky energy storage in the form of what? Choices: - fat - protein - dioxide - starch A:
A: starch
Question: Answer the following question given this paragraph: Beautiful sunsets are another manifestation of Rayleigh scattering that occurs when light travels long distances through the atmosphere. The blue light and some green is scattered away, making the sun appear red. Q: What makes sunsets appear red? Choices: - wavelength scattering - reflection scattering - floral scattering - rayleigh scattering A:
Answer: rayleigh scattering
*Question*
Answer the following question given this paragraph: Hemoglobin Hemoglobin is a large molecule made up of proteins and iron. It consists of four folded chains of a protein called globin, designated alpha 1 and 2, and beta 1 and 2 (Figure 18.7a). Each of these globin molecules is bound to a red pigment molecule called heme, which contains an ion of iron (Fe2+) (Figure 18.7b). Q: Hemoglobin is a large molecule made up of proteins and iron. it consists of four folded chains of a protein called this? Choices: - peptide - histone - insulin - globin A:
**Answer**
globin
Answer the following question given this paragraph: Hydrocarbons are molecules that contain only carbon and hydrogen atoms. Because each carbon atom can form covalent bonds with up to four other atoms, very large and complex molecules can be formed just from these two elements. Hydrocarbons in which all carbons are connected by single bonds are known as alkanes . If a C=C double bond is present, the compound is now an alkene . A triple bond between two carbons (CC) makes the compound an alkyne . Hydrocarbons can also be broadly classified as either saturated , which means they contain no multiple bonds, or unsaturated , which means they contain at least one double or triple bond. Q: Hydrocarbons in which all carbons are connected by single bonds are called? Choices: - acids - enzymes - lipids - alkanes A:
alkanes