a layer of rock contains an index fossil that is 250 million years old. How old is another layer of rock with the same fossil 1,000 miles away?

True or false: power is work done over a distance

What physical properties of water cause it to be such a good solvent

Farmer Brown grows corn for a living. One day, Farmer Green suggests to Farmer Brown that he should clone his best corn plant in order to produce more ears of corn per plant. Farmer Brown is not sure about Farmer Green's idea.

How are slides held in place on a microscope?

Juliana was born at 7 pounds 3 ounces and now weighs 28 pounds. Which characteristic of life does this change display?

Explain why land use planning has to incorporate such diverse disciplines as architecture, urban planning, and environmental planning.

Dna strands are held together by

Coal is the biggest source of electricity production. Discuss some of the effects of coal mining and use for power? How can you reduce the amount of coal used for electricity production?

True or false the grain group includes, cereal, rice, pasta, and grits

Read the paragraph, and then answer the question. The solid part of Earth is made of huge chunks called plates. These plates sometimes move. When this happens, earthquakes may occur.