Answer:
In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. A crystal structure is composed of a unit cell, a set of atoms arranged in a particular way; which is periodically repeated in three dimensions on a lattice.
Explanation:
Answer:
True
Explanation:
The semi-major axis of an ellipse is half the length of its major axis.
Answer:
Here's what I get
Explanation:
A more developed country has
- A post-industrial economy — the service sector provides more wealth than the industrial sector
- A high per capita income
- Advanced technological infrastructure
A less developed country has
- A pre-industrial or agrarian economy
- A low per capita income
- Poor infrastructure
Answer: A, C and D
Explanation:
The correct answer is (D), sheep. Didgeridoos and boomerangs are artifacts invented by Australian Aborigines . Koalas evolved in Australia, and to this day are only found in the wild in Australia. In contrast, sheep were first domesticated in ancient Mesopotamia and then brought by humans to other parts of the world. The first sheep were brought to Australia by ship, from the Cape of Good Hope in 1788.
