3. A mineral sample has a mass of 4.2 grams and a volume of 2 milliliters. What is the density of the mineral? A. 2.1 g/mL
B. 22 g/mL
C. 6.2 g/mL
D. 8.4 g/mL

What type of aid does nigeria receive? short term, tied, voluntary, bilateral, multilateral or long-term?

What can you learn about precipitation levels in south america from this map? brazil is experiencing a drought.it rains more in higher altitudes.peru received the highest level of rain.venezuela got less than 25 cm of rain. 

15 points need quick 1. looking at your graph and the geologic time scale during what period did this rock form? what is the age span of the rock, in millions of years? 2. this rock sample is limestone and shale. with what you know about rock formation, what type of environment did these organisms live in? 3. if some of these fossil samples were found in a rock also containing leaf fossils, could you use radiocarbon dating to determine the age of this rock? explain.