Answer the following question given this paragraph: Like a blanket on a sleeping person, greenhouse gases act as insulation for the planet. The warming of the atmosphere is because of insulation by greenhouse gases. Greenhouse gases are the component of the atmosphere that moderate Earth's temperatures. Q: Like a blanket on a sleeping person, greenhouse gases act as what for the planet? Choices: - ventilation - plastic - Exterior Coverings - insulation A:
insulation
(Question)
Answer the following question given this paragraph: Metalloids are the smallest class of elements. (The other two classes of elements are metals and nonmetals). There are just six metalloids. In addition to silicon, they include boron, germanium, arsenic, antimony, and tellurium. Metalloids fall between metals and nonmetals in the periodic table. They also fall between metals and nonmetals in terms of their properties. Q: Metalloids, metals, and nonmetals are all classes of what? Choices: - compounds - protons - matter - elements A:
(Answer)
elements
Ques: Answer the following question given this paragraph: The Voyager 1 spacecraft visited Saturn in 1980. Voyager 2 followed in 1981. These probes sent back detailed pictures of Saturn, its rings, and some of its moons ( Figure below ). From the Voyager data, we learned what Saturn's rings are made of. They are particles of water and ice with a little bit of dust. There are several gaps in the rings. These gaps were cleared out by moons within the rings. Gravity attracts dust and gas to the moon from the ring. This leaves a gap in the rings. Other gaps in the rings are caused by the competing forces of Saturn and its moons outside the rings. Q: What planet did the voyager 1 spacecraft visit in 1980? Choices: - venus - mars - jupiter - saturn A:
Ans: saturn
(Q).
Answer the following question given this paragraph: An electromagnetic wave consists of vibrating electric and magnetic fields. Q: In addition to a vibrating electric field what does an electromagnetic wave consist of? Choices: - radiation field - molecular field - gravitational field - magnetic field A:
(A).
magnetic field
Ques:Answer the following question given this paragraph: Only when a lower energy level is full are electrons added to the next higher energy level. Electrons at higher energy levels, which are farther from the nucleus, have more energy. They also have more orbitals and greater possible numbers of electrons. Q: When a lower energy level is ______ electrons are added to the next higher energy level. Choices: - unbalanced - ready - empty - full A:

Ans:full
Ques:Answer the following question given this paragraph: Q: Large increases in the diversity of life have resulted from adaptive radiations that followed what? Choices: - mass mutations - mass migrations - glaciers - mass extinctions A:

Ans:
mass extinctions