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:
water intoxication
(Question)
Answer the following question given this paragraph: The amount of kinetic energy in a moving object depends on its mass and velocity. An object with greater mass or greater velocity has more kinetic energy. The kinetic energy of a moving object can be calculated with the equation:. Q: What two things determine how much kinetic energy an object has? Choices: - its weight and volume - its height and speed - its mass and direction - its mass and velocity A:
(Answer)
its mass and velocity
Ques: Answer the following question given this paragraph: Although spiders and insects are both arthropods, a spider is not an insect. One key difference is that insects have six legs, while spiders have eight legs. Q: How many more legs do spiders have compared to insects? Choices: - six - one - four - two A:
Ans: two
(Q).
Answer the following question given this paragraph: Plants can get the energy they need for photosynthesis from either sunlight or artificial light. Q: Sunlight gives plants the energy they need for what? Choices: - respiration - absorption - glycolysis - photosynthesis A:
(A).
photosynthesis
Ques:Answer the following question given this paragraph: Q: Management programs based on population-regulating factors have helped prevent the extinction of many? Choices: - abundant species - keystone species - omnivores - endangered species A:

Ans:endangered species
Answer the following question given this paragraph: After food is broken down into nutrient molecules, the molecules are absorbed by the blood. Absorption is the process in which nutrients or other molecules are taken up by the blood. Once absorbed by the blood, nutrients can travel in the bloodstream to cells throughout the body. Q: What type of fertilization do most reptiles use to reproduce? Choices: - mechanical - external - asexual - internal A:
internal