Your answer would be D because it is the only answer choice that would attract people.
Answer:
Explanation:
Gravity is an attractive force that acts on every particle of matter in the universe. The strength of the attraction depends on distance and mass however. If they're close enough, two particles of cosmic dust will gravitate toward each other. Meanwhile, the gravitational force of a planet will pull on objects much farther away.
Answer:
Perestroika under Soviet leader Mikhail Gorbachev´s rule was:
a. restructuring of the planned centralized economy,
Explanation:
It was an attempt to reform the socialist command economy in the 1980s, its lack of economic and entrepreneurial incentives, an attempt to stimulate innovation and overcome stagnation. It didn´t reach its goals and led to unrest in the Soviet Union.
Answer:
A coral reef is a reef-shaped structure in the sea, formed by anemones and which over time becomes large enough to have a significant ecological and physical impact on its environment. These are the largest structures built from living organisms in the world. Coral reefs are complex marine ecosystems. They are a biotope (area of life) of a biocenosis (community of living beings) consisting of plants and animals, for example worms, shellfish, sponges, thorns and crustaceans. Coral reefs play a significant role as “breeding grounds” for the offspring of fish inhabiting the high seas.
