Answer:
An educated guess or a presumption based on review of the research literature
Explanation:
A hypothesis is an educated guess or a presumption based on review of the research literature.
It is a proposition based on reasoning without any assumption of its truth, it enables the researcher to have a better understanding about the subject matter of the study.
Answer:
from roughly 2550 to 2490 B.C
Answer:
Cold weather
Explanation:
The reason that Alec should limit his driving time/distance in all of the following areas or conditions except for cold weather is because of a concept called temperature inversion. Temperature inversion means that in winter season there is a warm layer of air trapped between two cold layers of air. This happens in winter as the air at altitude is always cold but now the surface temperature or air is also cold. Hence, the warm air above the surface and at lower altitude traps air pollutants contributing to smog occurrence. This is a natural phenomenon and therefore, Alec cannot reduce the chance that he will contribute to a major smog occurrence during cold weather by limiting his driving.
Answer: option d
Explanation:they are also normally called noradrenaline.
They do help by constant regulating of the blood pressure and to increase the sugar (glucose) level content in the blood. It help majorly to lift up (increase) the rate as well as the force of the contraction of the heart and also in do lead to an increase in muscle contraction due to the fact that they are push out(realeased) from the sympathetic nerve fibre ends.
Those are two completely different questions
