Agricultural engineers have a variety of tasks, including giving answers to agricultural-related difficulties, as well as the usage of structures and infrastructure.
<h3>What does an agricultural engineer do?</h3>
Agricultural engineering, commonly referred to as agricultural and biosystems engineering, is the study and application of engineering science and design concepts to agriculture.
An agricultural engineer is a professional engineer with a background in agriculture. Agricultural engineers develop and plan the engineering for an agricultural project, generally in collaboration with an agriculturist who is more knowledgeable in farming and agricultural science.
Thus, some of the jobs of agricultural engineers are, addressing concerns with power sources, machine efficiency, building, and facility utilization, pollution, and environmental challenges.
Learn more about agricultural engineering:
brainly.com/question/14568650
#SPJ1
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.
To learn more about external validity, refer:
brainly.com/question/28760166
#SPJ4
Answer:
90 mins i think. Sorry if wrong im not sure
Explanation:
A: It has a range of 14
Explanation:
I haven't done this in a while but this is the only option that makes sense
