Answer:
Descriptive research is a type of research that studies the participants that take part in the research or a certain situation. Descriptive research does not limit to either of quantitative or qualitative research methodologies, but instead, it uses elements of both, often within the same study. Therefore, a descriptive researcher often uses three major ways to collect and analyse the data. They are observations, case studies and surveys.
now i dont know much about comparisons but im assuming your comparing your own experiment to someone elses to see if you get the same result.
Answer:
Half-Life is the time for a substance (U-235 in this case) to decay to 1/2 its original mass.
Since the problem is asking for the time for U-235 to decay to 1/2 its original mass (100 grams to 50 grams) then the decay time is 1 half-life, or 700 million years.
hope it helps u kindly mark as brainliest...
Circle is phosphate group
Square is Sugar
And the hexagon shape is nitrogenous base
<span>Brine shrimps can reproduce in two ways. 1) viviparious or live reproduction and 2) oviparious or production of eggs that hatch after being expelled from the body. The eggs, coated in chorion coating, are called cysts.</span>
The difference in arrival time between the two types of seismic wave can<span> be </span>used to calculate<span> the distance of the </span>earthquake's epicenter<span> from the seismometer, as the further away an </span>earthquake<span> is, the greater the lag time between the detection of the S </span>waves<span> relative to the P </span>waves<span>.
</span>
