(Q).
Q: Carbon atoms have six neutrons as well as how many protons? Read this paragraph and choose the correct option from the provided answers: A neutron is a particle in the nucleus of an atom that has no electric charge. Atoms of an element often have the same number of neutrons as protons. For example, most carbon atoms have six neutrons as well as six protons. This is also shown in Figure below . Choices: - ten - two - four - six A:
(A).
six

(Q).
Q: Adding carbon to iron makes what type of metal? Read this paragraph and choose the correct option from the provided answers: Metals such as iron are useful for many purposes because of their unique properties. For example, they can conduct electricity and bend without breaking. However, pure metals may be less useful than mixtures of metals with other elements. For example, adding a little carbon to iron makes it much stronger. This mixture is called steel. Steel is so strong that it can hold up huge bridges, like the one pictured above. Steel is also used to make skyscrapers, cargo ships, cars, and trains. Steel is an example of an alloy. Choices: - ions - titanium - plastic - steel A:
(A).
steel

(Q).
Q: What natural part of the water cycle can cause damage and death? Read this paragraph and choose the correct option from the provided answers: Floods are a natural part of the water cycle, but they can cause a lot of damage. Farms and homes may be lost, and people may die. In 1939, millions of people died in a flood in China. Although freshwater is needed to grow crops and just to live, too much freshwater in the same place at once can be deadly. Choices: - clouds - evaporation - expiration - floods A:
(A).
floods