Answer:
B. four-crop rotations
Explanation:
the four-crop rotations was invented in the 18th century which means from January 1, 1701 to December 31, 1800. (1700s).
A) france i just did it on plato.
Here are some cause of a country’s population increase:
a) increase in birth rate than death rate
b) better health facilities
c)better education
Answer:
1. Most volcanic islands originate from passive lava flows on the seafloor.
2. These passive flows harden into rock and build up the height of the underwater mountain over millions of years.
3. In addition to magma supply, plate tectonics play a large part in determining which submarine volcanoes will eventually form islands.
4. This volcano, West Mata, erupted in 2009 about 1,219 meters (4,000 feet) beneath the surface of the Pacific Ocean, between Fiji, Tonga, and Samoa.
5. The orange glow of magma is visible beneath the plume of volcanic gases (mostly yellowish sulfur) emitted by West Mata.
Answer:
c. Decrease in competition from other plants
Explanation:
The lost of many plant species including big trees that once completed with and surpressed the fireweed paved way for the thriving of this plant species.
The fireweed has enough space, abundant nutrient, exposure to sunlight which aided its exponential growth as a result of decrease in competition for these same resources from other plants which are now lost due to the wildfire that claimed many area of the park.