Which condition causes ocean salinity to decrease?

a. river water flowing out into the ocean

b. low levels of precipitation

c. high levels of evaporation

d. freezing of polar ice caps

Which observation would provide indirect evidence that supports a hypothesis that the bubbles are o2?

What are the two recognized means of preventing injury during electrical equipment operation?

How are all humans similar?

Which best describes primary succession?

Question 1 of 7 Multiple Choice Which level of organization does the complete skeleton of a mouse belong to? A. cell B. a tissue C. an organ D. an organ system

If a water well is actively pumped, the water table will * O be raised around the well O stay at the same level as before pumping O be depressed around the well O be recharged

Proposed answer to a scientific question that A. can be rejected B. is testable C. both a & b

In which list are the levels of organization in the human digestive system shown from lowest to highest?

Splitting cells involves creating a single by combining two or more

Think about the sources you would use to get information about scientific ideas. Which sources would you avoid? Check all that apply. a magazine an encyclopedia a scientific journal an advertisement a TV show