Answer:
Carbon Dioxide, or CO2
Explanation:
Plants need to breathe, otherwise they won't survive
Humans' intake oxygen and exhale CO2
However, plants intake CO2 and exhale oxygen
A beaker about two-thirds full of a liquid. check all that apply. pour using tongs. wear chemical resistant gloves. taste to make sure it is hcl. One should wear chemical resistant gloves.
It is not at all possible to pour the liquid with the help of tongs because it may spill and cause harm, in case it is hazardous.
Also tasting whether the liquid is hcl or not is not gonna help because we don't know whether the chemical is fatal or not. Even if it is Hcl, tasting it is not a good option, because it will cause damage to our tongue and other parts of mouth.
Thus the most convenient thing to do is to wear chemical resistant gloves to ensure safety.
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The ability to generalize a study's results to different circumstances is known as external validity that suffers from 7 types of threats.
<h3>What are the threats to External Validity?</h3>
There are 7 major threats to external validity.
- The first threat is sampling bias, in which a sample is not representative of the population.
- The second threat is history, where an unrelated incident can affect the results.
- The third threat is observer bias, in which the traits or actions of the experimenter unintentionally affect the results, resulting in bias and other demand features.
- The fourth threat is the Hawthorne effect, which describes the propensity for individuals to alter their behaviour merely because they are aware that they are being observed.
- The fifth threat is the Testing Effect, in which the results are impacted by whether a test is administered before or after another.
- The sixth threat is the aptitude-treatment, which involves the interaction of individual and group factors to affect the dependent variable.
- The environment, time of day, location, researcher traits, and other variables that restrict the generalizability of the results are included in the seventh threat.
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Based on the excerpt from "Long Haul," we can deduce that "the long haul" represents: A. the ongoing battle to make the world a better place.
<h3>What is a context clue?</h3>
In English literature, a context clue refers to the hints in a literary work (poem) which is used by a poet to provide the meaning of an unfamiliar word or phrase, that is literally hidden in plain sight.
Based on the excerpt from "Long Haul," we can infer and logically deduce that "the long haul" represents an ongoing battle by the characters to make the world a better place for people to live in.
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We suggest starting to prep for the the SAT as early as eighth grade year. It sound early, but if a student plans on taking the SAT several times throughout high school, eighth graders can take a relaxed and long-view approach to prepping, and can plan on taking their first SAT sophomore year.
