Answer:
Solar flare
Explanation:
A solar flare is an outburst of solar radiation from the surface of the sun outward. This leads to increase in heat intensity and brightness around sun.
The flare is often accompanied by the ejection of electromagnetic radiations from the surface of the star into the stellar space. It can last from a few minutes to some hours.
The correct answer is - A. Devonian.
The Devonian is one of the seven periods of the Paleozoic Era. It lasted for 50 million years, from 410 million years ago until 360 million years ago. It is the period in which the first insects evolved, the first seeded plants, as well as the first land vertebrates. This period came after the Silurian period, and was followed by the Mississippian period.
Abrasion is caused by the effects of wind and sand.
The Spanish Habsburg dynasty
Human-environment interactions is the intercations between the human social system and the ecosystem.
One example could be that the people in rural depends on the natural resources,such as the soil,land,and animals to farm,build facilities and hunt to sustain livelihood. Resources taken from the ecosystem are used, however one does not simply carry on like that. For instant when there is excessive cultivation, the soil nutrient would be used up causing soil erosion,leading to the soil no longer fertile enough to farm. Therefore,measures are carry out to preserve the land like growing different crops and using fertilizer.
Hope it helps!
