Earth Science Questions
Explore questions in the Earth Science category that you can ask Spark.E!
Rock formed from magma or volcanic lava is called _____.
Rock that forms when layers of sediment and organic material harden is called _____.
A hard, natural substance made of one or more minerals that contain organic materials is called:
The center of the earth is called the _____.
The thin outer layer of the earth is called the _____.
The characteristic of a mineral to break along smooth, straight lines or into flat sheets is called ______.
A substance made of things that were never alive is _____.
An inorganic substance found naturally in the earth is called _____.
Most of the earth's mass is in the _____.
The color of the mark made when a mineral sample is rubbed on a harder surface is called the _____.
When studying soils we are concerned with Soil ____, ____, ____ & ____ (4)
Soil Structure relates to the ____ or ____ of soil particles into aggregates or peons
Methods of Determining Soil Classes- USDA Lab method
The greater the rainfall and humidity the _____ the weathering
At first tillage improves ____ ___ but over time tillage destroys structure
Soil _____ & _____ both determine the supply of H20, Air, Nutrients & Heat
How many continents are on earth?
According to Hillel, most crop plants (corn, soybean, wheat etc.) are classified as:
Natural (i.e., unpolluted) rainwater has a pH<7 due to the fact that it contains:
What happens to density, pressure and temperature as you go deeper into the earth?