My answer is letter A. In both, number 4 and 5.
Answer:
The statement is false. The tundra climate, with long, cold winters and short, cool summers (normally they do not last more than two months and temperatures do not usually exceed 10ºC).The statement describes a desert due the drastic temperature change from day to night.
Explanation:
The tundra is a type of biome whose main characteristics are an extremely cold climate, little rainfall, strong winds, soil that is quite poor in nutrients, and low biological diversity. The desert is an area of extremely dry land with little rainfall or no rain. It is one of the most important biomes on Earth given the variety of plants and animals adapted to living in such conditions. There is an absence of precipitations, below 125 mm and extreme temperature changes between the day and night more than 40 ºC during the day and during the night less than 0 ºC. The vegetation is scarce being the one that there are xerophytes. They are adapted to minimize water loss and absorb dew, they also have large roots. The fauna is also adapted, presenting a hard skin to avoid perspiration and highly concentrated urine.
Answer:
a. pyroxene (augite)
Explanation:
Pyroxene is a mineral which is found in igneous and metamorphic rocks of the earth crust. They are dark green in color. their formation needs high degree of temperature and high pressure. Pyroxene is made up of silicon as a major element but some elements also present in it such as Ca, Na, Mg, Fe, Al and Ti. Its chemical formula is (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6.
Answer:
C. the movement of the Earth's plates
Explanation:
The plates can be thought of like pieces of a cracked shell that rest on the hot, molten rock of Earth's mantle and fit snugly against one another. The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other.This movement is called plate motion, or tectonic shift. (National ocean service)
