Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Weathering/Soil Form
Test Review
| Question | Answer |
|---|---|
| The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is called a. erosion b. cracking and peeling c. abrasion d. ice wedging | abrasion |
| Ice wedging causes mechanical weathering of rock by means of a. heating & cooling b. plant growth c. animal actions d. freezing & thawing of water | freezing & thawing of water |
| What kind of weathering causes the mineral composition of rocks to change a. mechanical weathering b. permeable weathering c. chemical weathering d. general weathering | chemical weathering |
| A rock containing iron becomes soft and crumbly and reddish-brown in color. It probably has been chemically weathered by a. water b. carbon dioxide c. oxygen d. acid rain | water |
| A hot and wet climate causes weathering to take place a. slowly b. at the same rate as when the climate is dry and cool c. unevenly d. rapidly | rapidly |
| The most important factors in determining the rate of weathering are: a. carbon dioxide & acid rain b. abrasion & acids from plant roots c. animal actions & oxygen d. rock type & climate | rock type & climate |
| Soil formation begins with the weathering of a. litter b. rock c.the A horizon d. humus | rock |
| The solid layer of rock beneath the soil is called a. bedrock b. gravel c. the B horizon d. subsoil | bedrock |
| The mixture of rock particles, minerals, decayed organic material, air, & water is called a. gravel b. litter c. silt d. soil | soil |
| The decayed material in soil is called a. silt b. litter c. humus d. clay | humus |
| Living organisms in soil help to a. slow the rate of soil formation b. build up the C horizon c. mix the soil and make humus d. prevent the formation of humus | mix the soil & make humus |
| Decomposers are the soil organisms that a. store moisture in the soil b. break down & digest the remains of dead organisms c. make spaces in the soil for air & water d. burrow deep below the topsoil | break down & digest the remains of dead organisms |
| The growth of plant roots & animal activity may result in a. mechanical weathering b. erosion c. chemical weathering d. abrasion | mechanical weathering |
| Granite lasts a long time when it is used for building in areas where the climate a. does not have freezing & thawing b. is cool c. does not have acid rain d. is hot & rainy | is cool |
| Most of the work of mixing humus within the soil is done by a. fungi b. ants c. earthworms d. bacteria | earthworms |
| A permeable rock weathers easily because it a. is made up of small particles b. contains many small, connected airspaces c. is made up of only one mineral d. is made up of many minerals | contains many small, connected airspaces |
| The texture of soil depends on a. the litter on top of the soil b. the depth of the topsoil c. how much air the soil contains d. the size of individual soil particles | the size of individual soil particles |
| l called loam is made up of a. pure humus b. mostly clay c. nearly equal amount of silt, sand, & clay d. sand & gravel | nearly equal amount of silt, sand & clay |
| The layer of soil in which topsoil is found is the a. A horizon b. B horizon c. C horizon d. Bedrock | A horizon |
| A marble statue is left exposed to the weather. Within a few years, the details on the statue have begun to weather away. This weathering probably is caused by a. oxygen in the air b. carbonic acid in rainwater c. lichens d. abrasion | Carbonic acid in rainwater |
Created by:
kkasinsky
Popular Earth Science sets