Q: Q: What is the top part of water able to receive enough sunlight for photosynthesis called? Read this paragraph and choose the correct option from the provided answers: Only the top 200 meters or so of water receive enough sunlight for photosynthesis. This part of the water is called the photic zone. Below 200 meters, there is too little sunlight for photosynthesis to take place. This part of the water is called the aphotic zone. In this zone, food must come from other sources. It may be made by chemosynthesis, in which microorganisms use energy in chemicals instead of sunlight to make food. Or, food may drift down from the water above. Choices: - thymic zone - synthesis zone - fantasmic zone - photic zone A:
A: photic zone

Q: Q: Do metals tend to gain electrons or lose electrons in chemical reactions? Read this paragraph and choose the correct option from the provided answers: Metallic character refers to the level of reactivity of a metal. Metals tend to lose electrons in chemical reactions, as indicated by their low ionization energies. Within a compound, metal atoms have relatively low attraction for electrons, as indicated by their low electronegativities. By following the trend summary in the figure below, you can see that the most reactive metals would reside in the lower left portion of the periodic table. The most reactive metal is cesium, which is not found in nature as a free element. It reacts explosively with water and will ignite spontaneously in air. Francium is below cesium in the alkali metal group, but is so rare that most of its properties have never been observed. Choices: - develop electrons - same number of electrons - gain electrons - lose electrons A:
A: lose electrons

Q: Q: What is the act of noting or detecting phenomenon through the senses Read this paragraph and choose the correct option from the provided answers: Scientists first make observations that raise questions. An observation is the act of noting or detecting phenomenon through the senses. For example, noting that a room is dark is an observation made through sight. Choices: - sensory overload - invention - overstimulation - an observation A:
A: an observation

Q: Q: Air pollution can cause disease of what system by affecting the health of your lungs? Read this paragraph and choose the correct option from the provided answers: Air pollution is another significant cause of respiratory disease. The quality of the air you breathe can affect the health of your lungs. Asthma, heart and lung diseases, allergies, and several types of cancers are all linked to air quality. Air pollution is not just found outdoors; indoor air pollution can also be responsible for health problems. Choices: - excretory - digestive - cardiac - respiratory A:
A: respiratory