scientists often consider a volcano to be active only if it is showing signs of unrest (i.e. unusual earthquake activity or significant new gas emissions) that mean it is about to erupt.
<u>Answer:</u>
Harsh weather conditions and vast distances pose a great challenge for the transportation of petroleum products and other goods in Russia.
<u>Explanation</u><u>:</u>
- Russia is a country with the largest east-west stretch in the world. The major cities in Russia are far apart on great distances from each other.
- Above all, Russia majorly lies between the higher latitudes which makes it a temperate region.
- The temperatures in Russia fall down up to -30°C in winters making it tough to carry out the transportation of petroleum products and other goods.
Fire is important because it cooked food, provided light and provided heat
Answer: The name of the biome is Tundra.
Explanation:
Tundra is the coldest of all the biomes. Tundra comes from the Finnish word tunturi, meaning treeless plain. It is noted for its frost-molded landscapes, extremely low temperatures, little precipitation, poor nutrients, and short growing seasons. Dead organic material functions as a nutrient pool. The two major nutrients are nitrogen and phosphorus. Nitrogen is created by biological fixation, and phosphorus is created by precipitation.
Characteristics of tundra include:
Extremely cold climate
Low biotic diversity
Simple vegetation structure
Limitation of drainage
Short season of growth and reproduction
Energy and nutrients in the form of dead organic material
Large population oscillations.
Definition of Term:
Biome -
What is a biome? Biomes are very large ecological areas on the earth's surface, with fauna and flora (animals and plants) adapting to their environment. Biomes are often defined by abiotic factors such as temperature, climate, relief, geology, soils and vegetation.