Osteoporosis is <span>a medical condition in which the bones become brittle and fragile from loss of tissue, typically as a result of hormonal changes. </span>Our bones store calcium in addition to providing support for our bodies.
The answer would most likely be D. During their development, many organisms look similar, suggesting that very different organisms may have a common ancestor.
This is because this be evidence to the theory of common decent
Answer:
Weathering and erosion constantly change the rocky landscape of Earth. Weathering wears away exposed surfaces over time. The length of exposure often contributes to how vulnerable a rock is to weathering. Rocks, such as lavas, that are quickly buried beneath other rocks are less vulnerable to weathering and erosion than rocks that are exposed to agents such as wind and water.
Explanation:
Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away. No rock on Earth is hard enough to resist the forces of weathering and erosion. Together, these processes carved landmarks such as the Grand Canyon, in the U.S. state of Arizona. This massive canyon is 446 kilometers (277 miles) long, as much as 29 kilometers (18 miles) wide, and 1,600 meters (1 mile) deep.
B. O stands for Oxygen so the molecule has oxygen atoms.
