13.
Using methods to determine something's actual age is known as what? (2 points)
Absolute dating
Relative dating
Carbon 14 dating
Uranium 235 dating
14.
Describe two human actions that cause water pollution. (4 points)
15.
Which process would have the greatest negative impact on a forest? (2 points)
wrting part
Clearing large tracks of land of all trees
Removing some of the overpopulated animals from a forest
Controlled burning of the underbrush
Selective thinning of some trees
16.
The two types of weathering are (2 points)
water and wind
mechanical and chemical
mechanical and wind
biological and wind
17.
Can any type of rock become igneous rock? (2 points)
No, only volcanoes produce igneous rocks
No, one type of rock cannot change into another type of rock
Yes, rocks at the surface can change from any type to igneous
Yes, if they are pressed down into the Earth's core and melt and cool to become igneous rocks
1
8.
List and describe two ways that scientists can date fossils found in the earth. (4 points)
13} Absolute dating 14} The main causes of water pollution are most often man made andcaused by increasing industrialization and human activities. Mostly the water bodies get polluted with municipal, industrial and agricultural waste and their unplanned leaking, run off, dumping and disposal. 15} Removing some of the overpopulated animals from a forest 16} mechanical and chemical 17} Yes, rocks at the surface can change from any type to igneous 18} There are two main methods determining a fossils age, relative dating and absolute dating. Relative dating is ... For example if you have a fossil trilobite and it was found in the Wheeler Formation. The Wheeler ... Scientists can use certain types of fossils referred to as index fossils to assist in relative dating
