Explain the formation of sedimentary and metamorphic rocks with the help of sketches.

Develop a listing that indicates comparative values of specific gravity (or heaviness) for rock materials in the lithosphere, the asthenosphere, the continental crust, and the ocean crust.

Answer number 3

Briefly describe the difference between how metamorphic, igneous, in sedimentary rocks form.

Geotechnical engineering soil mechanics

Calculate the percent porosity of a series of rocks having spherical grains of radii 1, 2-, 4-, 8-, and 16-mm. The rock is a cube with a side (L) measuring 63 mm. Rock Sediments Side, mm Volume, mm³ Radius , mm Volume, mm³ No. of sediments in rock Total volume, mm³ Pore Volume, mm³ Porosity, % 1 2 4 8 16 Does the porosity change? Why?

Problem 1: A sieve analysis of 1,135 grams of fine rock yields the following data in the table. The size of a sieve Restrained in each a Through a sieve(gr) sieve (gr) % in 1135 ½ in 56 1079 % in. 171 908 NO.4 262 646 NO.8 203 443 NO.30 182 261 NO.50 68 193 NO.100 57 136 NO.200 51 85 Pan 85 The total weight of example 1135 grams

During the Pleistocene, a large rock was moved 127 m down a gentle slope over a 2,270 year  period via the process of creep. What was the creep rate in cm/yr?  ratecreep =  cm   yr

This type of survey supplies the data necessary to determine the alignment, grading, and earthwork quantities for the design and construction of various engineering projects such as roads, railroads, pipelines, and utilities a. Preliminary Surveys b. Route Surveys c. Location Surveys d. None of the above

we were told that the sigma y going up the sign is supposed to be negative in rock mechanics. ( I am confused, can you explain please) and the formula given to us about txy' does have a negative sign. I try it before posting those questions to verify my answer but because of those sign answer are different.