The image shows a sandstone formation with visible bands of different colors. What do the bands indicate about how this sediment
ary rock was formed? Choose two answers A. The rock was made from more than one type of material
B. Water was absent during the compaction and cementation process
C. Sediments and other matter were deposited in layers before lithification
D. The rock was stretched horizontally by the pressure from surrounding rocks.
E. Layers of hot liquids in the rock cooled and solidified at different temperatures
Option A, The rock was made from more than one type of material
Option C, Sediments and other matter were deposited in layers before lithification
Explanation:
The process of lithification involves reduction of water within the pores of rock when external force and pressure is applied. After this process the process of stratification starts. Stratification leads to formation of layer of different rock type ( different composition and material) under the application of pressure and temperature as shown in this image.
The evading viruses destroys helper T cells or the CD4+ thus the body can no longer stop some infections. The secondary infections also called opportunistic infections are rampant with people who have AIDS. This is because helper T cells help fight against most infections in the body.
