Selective logging—the practice of removing one or two trees and leaving the rest intact—is often considered a sustainable alternative to clear-cutting, in which a large swath of forest is cut down, leaving little behind except wood debris and a denuded landscape.
Answer:
A. = Shale
B = Granite
C = Sandstone
D = Limestone
Explanation:
Based on the weathering patterns, the rock type shown in each photo can be concluded to be as
A. = Shale: this is a form.of sedimentary rocks. It is formed from finely textured materials. Such as clay, quartz, and calcite minerals
B = Granite: this is derived from igneous rock. It has coarse texture features.
C = Sandstone: it is formed by a sand-sized grain of natural earth materials that form together
D = Limestone: it is also a form of sedimentary rock. It contains a large quantity of calcium carbonate it is formed from materials such as ancient corals and skeleton.
Answer:
The correct answer is option - microorganism.
Explanation:
The initial life form on earth was bacteria. These bacteria could live and survive in a toxic atmosphere at that time scale. Researchers and scientist believe that life in the earth were prokaryotes with no cell membrane and cell nucleus most probably bacteria.
All other organisms evolved later when there are enough oxygen and no toxicity in the environment.
Thus, the correct answer is option - microorganism.
Answer:
A and B
Explanation:
Gravity relies on both mass and distance
