Which radiometric dating technique is applicable to Earth's oldest rocks?

uranium-lead

uranium-thorium

carbon-14

potassium-argon

The primary role of the nurse in caring for patients who have terminal illnesses is to ensure that: a. the patient has a happy death. b. pain is minimized and controlled. c. the patient is protected from unnecessary stress. d.

Wastes and dead organisms must be broken down in order for their components to be used again. What organisms in the cycle carry out this process? Choose all correct answers. Bacteria Fungi Peat Plants

Proteins that will be released from the cell are assembled at the?

Which of these is a sign of a chemical pollutant in crop plants? A. Reddish patches on leaves B. Yellowing of leaves C. Wilting of seedlings D. Enlarged seedlings

What is it in sound that we "hear"?

When you look out the window, you can see constantly moving air. air is cycled in order to reach equilibrium. B) since these change the density of air and we know the air flows from the region of high density to the region of low density.

What effects do deforestation have on the animals?

Which best defines a diploid cell during meiosis? a cell that has double the number of chromosomes as the parent cell a cell that has half the number of chromosomes as the parent cell a cell that has double the number of chromosomes as the daughter

What is the best definitionof magnetosphere? a. a magnetosphere is a magnetic field around earth. b. a magnetosphere is the groups of atoms that are lined up inside a magnet. c.

True or false: tertiary sources can draw from, or summarize, a secondary source.