Ques: Q: An atom is the smallest unit of what that maintains the identity of the latter? Read this paragraph and choose the correct option from the provided answers: The smallest piece of an element that maintains the identity of that element is called an atom. Individual atoms are extremely small. It would take about fifty million atoms in a row to make a line that is 1 cm long. The period at the end of a printed sentence has several million atoms in it. Atoms are so small that it is difficult to believe that all matter is made from atomsbut it is. The concept that atoms play a fundamental role in chemistry is formalized by the modern atomic theory, first stated by John Dalton, an English scientist, in 1808. It consists of three parts: 1. Choices: - mixture - organism - cell - element A:
Ans: element

Ques: Q: Neutrons and protons reside in which part of the atom? Read this paragraph and choose the correct option from the provided answers: Neutrons, like protons, reside in the nucleus of an atom. They have a mass of 1 and no charge. The positive (protons) and negative (electrons) charges balance each other in a neutral atom, which has a net zero charge. Because protons and neutrons each have a mass of 1, the mass of an atom is equal to the number of protons and neutrons of that atom. The number of electrons does not factor into the overall mass, because their mass is so small. As stated earlier, each element has its own unique properties. Each contains a different number of protons and neutrons, giving it its own atomic number and mass number. The atomic number of an element is equal to the number of protons that element contains. The mass number, or atomic mass, is the number of protons plus the number of neutrons of that element. Therefore, it is possible to determine the number of neutrons by subtracting the atomic number from the mass number. Choices: - molecules - nucleolus - vacuoles - nucleus A:
Ans: nucleus

Ques: Q: The average number of individuals per unit of area or volume is referred to as a population's what? Read this paragraph and choose the correct option from the provided answers: Population density is the average number of individuals per unit of area or volume. Choices: - increase - diameter - output - density A:
Ans: density

Ques: Q: What natural disaster is california most linked with? Read this paragraph and choose the correct option from the provided answers: Although California is prone to many natural hazards, including volcanic eruptions at Mt. Shasta or Mt. Lassen, and landslides on coastal cliffs, the natural hazard the state is linked with is earthquakes. In this video, the boundaries between three different tectonic plates and the earthquakes that result from their interactions are explored. Choices: - fires - volcanoes - hurricanes - earthquakes A:
Ans:
earthquakes