Erosion occurs when

1. a chemical change happens in rock formation

2. precipitation falls on a rock formation

3. solid particles are deposited elsewhere over time

4. liquid enters the water cycle

Excision within the artery (of plaque from the arterial wall) is called

Australopithecus garhi may be the ancestor of:

A codon that coppies the DNA'S messages is made by mRNA in a process called

Long ago, rats were common inhabitants of ocean-going ships. Imagine that rats from one town in Norway hitched rides on three different ships. Ten years later, most rats on the Ninã were brown; on the Pinta, black; and on the Santa Maria, white.

Using streamlined shapes in designing aircrafts

Why does the reporter have a tube up his nose? to accurately measure core temperature True or False

Charles Goodyear was a scientist who was looking for ways to keep rubber from melting in the summer heat and becoming brittle in the winter cold. He discovered the solution by accident when someone left a sample of rubber and sulfur on the stove.

Discuss why scientists know so little about Precambrian Earth

If two elements are in the same chemical family then what can be predicted about their Spectra

Which feature cause a gap in the geologic record a. extrusion b. fault c. intrusion d. unconformity