Answer the following question given this paragraph: Food chains carry energy from producers (autotrophs) to consumers (heterotrophs). 99% of energy for life comes from the sun via photosynthesis. Note that only nutrients recycle. Energy must continue to flow into the system. Though this food chains "ends" with decomposers, do decomposers, in fact, digest matter from each level of the food chain? (See the Energy Transfer: Decomposers (Advanced) concept). Q: Food chains carry energy from what group to what group? Choices: - consumers to producers - decomposers to producers - refiners to consumers - producers to consumers A:
producers to consumers
(Question)
Answer the following question given this paragraph: available; if arsenic is an essential trace mineral in human diets, it is probably required on the order of 50 ppb or less. A toxic dose of arsenic corresponds to about 7,000 ppb and higher, which is over 140 times the trace amount that may be required by the body. Thus, arsenic is not poisonous in and of itself. Rather, it is the amount that is dangerous: the dose makes the poison. Similarly, as much as water is needed to keep us alive, too much of it is also risky to our health. Drinking too much water too fast can lead to a condition called water intoxication, which may be fatal. The danger in water intoxication is not that water itself becomes toxic. It is that the ingestion of too much water too fast dilutes sodium ions, potassium ions, and other salts in the bloodstream to concentrations that are not high enough to support brain, muscle, and heart functions. Military personnel, endurance athletes, and even desert hikers are susceptible to water intoxication if they drink water but do not replenish the salts lost in sweat. As this example shows, even the right substances in the wrong amounts can be dangerous!. Q: Drinking too much water too fast can lead to what potentially fatal condition, which causes dangerous changes to salt levels? Choices: - inebriation - osmosis - drowning - water intoxication A:
(Answer)
water intoxication
Ques: Answer the following question given this paragraph: Refraction is another way that waves interact with matter. Refraction occurs when waves bend as they enter a new medium at an angle. You can see an example of refraction in Figure below . Light bends when it passes from air to water. The bending of the light causes the pencil to appear broken. Q: Light bends when it passes in from what to what? Choices: - air to ground - product to water - water to air - air to water A:
Ans: air to water
(Q).
Answer the following question given this paragraph: The first step in the process of inductive reasoning is making specific observations. In the periodic table of elements, which we will discuss later, there is a group of metals with similar properties called the alkali metals. The alkali metals include elements such as sodium and potassium. If I put sodium or potassium in water, I will observe a very violent reaction every time. I draw a general conclusion from these observations: all alkali metals will react violently with water. Q: Which group of metals in the periodic table include elements such as sodium and potassium? Choices: - igneous metals - actinides - lanthanides - alkali metals A:
(A).
alkali metals
Ques:Answer the following question given this paragraph: Valence electrons are the outer-shell electrons of an atom. Q: What are the outer-shell electrons of an atom called? Choices: - outer electrons - organism electrons - helium electrons - valence electrons A:

Ans:valence electrons
Answer the following question given this paragraph: Outline the forces that act on particles in the nucleus. Q: What type of movement is caused by erosion from direct gravity? Choices: - frictional movement - normal movement - electron movement - mass movement A:
mass movement