The answer is: the discovery resulted in some theories about the origin of flight.
Microraptor was a four-winged dinosaur, that lived about 120 million years ago. It is suggested that it was able to fly using all for limbs. It also had feathers, which suppose the connection between birds and dinosaurs. But, its feathers are used for gliding and not for flying. This suggests that flight evolved in the trees and not on the land.
A: Carbon dioxide
B: Carbon dioxide
C: Water and carbon dioxide, Oxygen, a by-product of photosynthesis, and water vapor exit the leaf.
D: the production of chlorophyll, the green pigment in plant leaves that converts energy from light into the carbohydrates plants feed on.
E: Precious Minerals.
Answer:
C
Explanation:
Bauxite is the most common aluminum ore. Approximately 98% of primary aluminum production is based on bauxite. In the former Soviet Union, aluinite and kaolinite are also used in small proportions for aluminum production. Bauxite is a naturally occurring, heterogeneous material composed primarily of one or more aluminum hydroxide minerals plus various mixtures of silica, iron oxide, titania, and other impurities in trace amounts. The principal aluminum hydroxide minerals found in varying proportions within bauxite are gibbsite (trihydrated) and boehmite and diaspore (both monohydrated). The content of aluminum oxide is 30–60%. Bauxite is generally extracted by open cast mining from strata, typically 4–6 m thick under a shallow covering of topsoil and vegetation (Table I).
Two molecules of oxygen atoms are present in the oxygen molecule and ozone molecule has three oxygen atoms.The oxidation potential of ozone is higher as compared to that of oxygen so it can whirl some oxidation processes much faster than that of oxygen. The densities of both the molecules are also different.
