An observation is A. A possible explanation for events using prior knowledge.
B. Always quantitative.
C. Made using any of the five senses.
D. Always qualitative.

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

The activity of the modern sample is 1.10 bq . how long does that measurement take?