Answer the following question given this paragraph: What goes into the cell? Oxygen and glucose are both reactants of cellular respiration. Oxygen enters the body when an organism breathes. Glucose enters the body when an organism eats. Q: What element enters the body when an organism breathes? Choices: - helium - water - methane - oxygen A:
oxygen
(Question)
Answer the following question given this paragraph: Some volcanoes form over active hot spots . Scientists count about 50 hot spots on the Earth. Hot spots may be in the middle of a tectonic plate. Hot spots lie directly above a column of hot rock called a mantle plume . Mantle plumes continuously bring magma up from the mantle towards the crust ( Figure below ). Q: What substance comes toward earth's crust through mantle plumes? Choices: - rocks - water - gas - magma A:
(Answer)
magma
Ques: Answer the following question given this paragraph: Air in the troposphere is warmer closer to Earth's surface. Warm air is less dense than cool air, so it rises higher in the troposphere. This starts a convection cell. Convection mixes the air in the troposphere. Rising air is also a main cause of weather. All of Earth's weather takes place in the troposphere. Q: Why does warm air rise higher in the troposphere? Choices: - it is more dense than cool air - It contains hydrogen - it is less flourishing than cool air - it is less dense than cool air A:
Ans: it is less dense than cool air
(Q).
Answer the following question given this paragraph: An element is a fundamental chemical part of a substance; there are about 115 known elements. A compound is a combination of elements that acts as a different substance; there are over 50 million known substances. Q: What is the name for a combination of elements that acts as a different substance? Choices: - contrast - mixture - solution - compound A:
(A).
compound
Ques:Answer the following question given this paragraph: Like all organisms, plants detect and respond to stimuli in their environment. Unlike animals, plants can't run, fly, or swim toward food or away from danger. They are usually rooted to the soil. Instead, a plant's primary means of response is to change how it is growing. Plants also don't have a nervous system to control their responses. Instead, their responses are generally controlled by hormones , which are chemical messenger molecules. Q: Instead of a nervous system, plant responses are generally controlled by what type of molecules, which serves as chemical messengers? Choices: - receptors - enzymes - sugars - hormones A:

Ans:hormones
Answer the following question given this paragraph: Light is one type of electromagnetic radiation . Light is energy that travels in the form of an electromagnetic wave. Figure below shows a diagram of an electromagnetic wave. An electromagnetic (EM) wave has two parts: an electric field and a magnetic field. The electric and magnetic fields vibrate up and down, which makes the wave. Q: Light is energy that travels in the form of what type of wave? Choices: - seismic - molecular - particle - electromagnetic A:
electromagnetic