Ques: Q: How many variables are used to describe the condition of a gas? Read this paragraph and choose the correct option from the provided answers: Recall from the kinetic-molecular theory that gas particles move randomly and in straight lines until they elastically collide with either other gas particles or with one of the walls of the container. It is these collisions with the walls of the container that defines the pressure of the gas. Four variables are used to describe the condition of a gas. They are pressure , volume , temperature , and the amount of the gas as measured by the number moles . We will examine separately how the volume, temperature, and amount of gas each affect the pressure of an enclosed gas sample. Choices: - five - one - three - four A:
Ans: four

Ques: Q: What is the second class of fish after ray-finned fish? Read this paragraph and choose the correct option from the provided answers: There are about 27,000 species of bony fish ( Figure below ), which are divided into two classes: ray-finned fish and lobe-finned fish. Most bony fish are ray-finned. These thin fins consist of webs of skin over flexible spines. Lobe-finned fish, on the other hand, have fins that resemble stump-like appendages. Choices: - pine - finned fish - spar - finned fish - star-finned fish - lobe-finned fish A:
Ans: lobe-finned fish

Ques: Q: What is the most abundant type of biological entity on the earth? Read this paragraph and choose the correct option from the provided answers: Viruses were first described by Dmitri Ivanovsky in 1892. He described a "non-bacterial pathogen" infecting tobacco plants. This was soon followed by the identification of the tobacco mosaic virus by Martinus Beijerinck in 1898. Since then, about 5,000 viruses have been described in detail, although it is believed that there are millions of different types. Viruses are found in almost every ecosystem on Earth, and are the most abundant type of biological entity. Viruses can be classified with a taxonomic structure from order to species. No kingdom classification exists. Viruses, not being made of cells, do not fall into any of the six prokaryotic or eukaryotic kingdoms. Choices: - bacteria - reptiles - insects - viruses A:
Ans: viruses

Ques: Q: If something is in the state of matter where it has both a definite shape and volume, then what state of matter is it in? Read this paragraph and choose the correct option from the provided answers: Choices: - gas - plasma - liquid - solid A:
Ans:
solid