Enabling habitation in warmer environments.
Work would be greatly reduced, if not completely shutdown when summer heat overwhelmed equipment and personnel.
Even paperwork: think of writing a letter or doing payroll with sweat dripping on the curled up humid papers!!
A/C is considered one of the most important of innovations in the 20th century.
Cooler, dehumidified factories and workspaces increased productivity exponentially.
Answer:
b. a theory
Explanation:
A theory is said to be a well structured explanation of a result in particular field of study. A theory tend to follow series of steps in an attempt to explain a result ;
Hypothesis : This is said to be a knowledgeable guess in the field of sciences.
Observation : The scientist engage in thorough study or observation of the experiment or facts he wants to establish.
Experiments : The scientist engage in series of experiments to back up his fact and observation.
A theory is propounded if it is testable . The theory must have passed through a series of scientific research to become an establish facts. It must pass numerous scientific investigation and often involving contribution from well meaning scientist in that domain. The theory must be simple , precise and express-able so it can be repeated by other scientist. This established fact should not contradict previous principles or theory but instead expand and agree with others.
1. "Clay rich" is the type of soil among the choices given that you should look for. The correct option among all the options that are given in the question is option "c".
2. "The parent material rock had feldspar minerals in it" is the statement that is true. <span>The correct option among all the options that are given in the question is option "b".
3. It is a false statement that the </span><span>bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. The second option is the correct option.
4. "</span>The relative amounts of sand, silt and clay particles" is the one that best defines soil texture. <span>The correct option among all the options that are given in the question is option "d".
5. "</span>With the advent of pesticides, minerals in the ground were leached" is the event that did not contribute to the Dust Bowl. <span>The correct option among all the options that are given in the question is option "d".
6. Raindrop is particularly damaging to the soil because </span>It causes the soil to break apart and carries it away. <span>The correct option among all the options that are given in the question is option "b".
7. </span>Due to a recent drought, a farmer has lost quite a bit of soil on his fields because wind has carried away the dry soil. <span>The correct option among all the options that are given in the question is option "c".
8. It is a false statement that a </span><span>farmer fields, which are close to a stream, has experienced a lot of runoff. One possible effect of the runoff is that the stream will have a decreased level of fertilizers from the field. The correct option is the second option.</span>
Stalactites are the ones that hang down from the ceiling in a cave..
