Answer:
Determining Chemical Properties using the Periodic Table. Chemical properties of each element are determined by the element's electronic configuration, and particularly by its outermost valence electrons.
Answer:
Because we cannot see some animals properly like jellyfish as their tissue is too soft, and feathers or for can often not make an imprint on fossils.
Explanation:
Answer:
a. As the temperature rises, the cricket chirp occurs more rapidly therefore increasing. It is correct.
b. As the humidity rises, the cricket chirp frequency occurs more rapidly therefore increasing. It is incorrect. The increase in humidity does not affect the chirp frequency in crickets.
Explanation:
As temperature increases, the frequency of cricket chirp increases too. After listening to the audios, we can see that in the first audio, where the temperature is 14° Celcius, the frequency is 24 chirps in 15 seconds. In the second audio, with 19° Celcius, the frequency is 28 chirps in 15 seconds. In the last audio, where the temperature is 24° Celcius, the chirp's frequency is 34 chirps in 15 seconds. In conclusion, if the temperature increases, the chirps' frequency increases too.
As humidity increases, the frequency of the chirp does not. In the three audios, the number of chirps in 15 seconds was 20. We can conclude that humidity does not affect the frequency of chirps frequency.
The given statement is true.
Paint and coating production procedures can generate hazardous air pollutants, incorporating heavy metals. The cleaning and mixing operations can discharge certain kinds of toxic air pollutants and VOC, that is, volatile organic compounds.
Till the time, the most harmful environmental influence from paints is the discharge of VOCs at the time of drying process, that is, after the coating is applied.
False
Facts are simple observations of the world, and they do not change over time until unless the theory was changed due to different research . Theories are hypotheses about what these facts mean, or how they should be understood, and they could change over time..
