Answer:A. no-till
Explanation: There are a large number of more or less well defined tillage systems for soil preparation and crop establishment.
Answer:
Earth's temperatures increased, causing widespread evaporation. Earth collided with a large object, forming the moon. Single-celled organisms released oxygen into the air when they photosynthesized.
Question number one for what?
The statement about air pollution that is false is that "air pollution is only a problem in the developing world. Air pollution effects are reached across the globe.Air pollution comes from power plants, smog in big cities, cars, factories, and even volcanoes. Some air pollution can't be seen such as that from a swamp. A swamps methane gas contributes to the pollution. In the U.S, the EPA sets laws to help reduce the air pollution damage done by places like coal-run power plants.
Carbon pollution in the atmosphere means the ocean will become more acidic , harming marine life in the process