Answer: 9 (in square units)
WORKINGS
Base of Triangle, b = 2√3
Height of Triangle, h = 3√3
Formula for Area of Triangle, A = (b * h)/2
Area of the Triangle = (2√3 * 3√3)/2
= (2 * √3 * 3 * √3)/2
Collect like terms in the bracket
= (2 * 3 * √3 * √3)/2
= [(2 * 3) * (√3 * √3)]/2
= (6 * 3)/2
= 18/2
= 9 (In square units)
Answer:
1. They usually host three or more ecosystems where animals can’t live.
4. They usually host one ecosystem with a variety of plants
Explanation:
A mountain ecosystem has more than one ecosystem. This is mainly due to the diversity of climate that this environment promotes. Due to its proximity to the ocean, slope and elevation, the mountain ecosystem promotes different areas that create different ecosystems, some more humid and others drier.
In this environment there is usually a wide variety of plants, but not animals.
The sun appears to cross the plane of Earth's equator
when it reaches either one of the "equinox" points in the sky.
At those times, the lengths of day and night are nominally equal
everywhere (except at the poles), and the occasions are marked
as the beginning of Spring and Autumn.
Answer:
A globe is a three dimensional representation of the Earth. It is a simpler model of the Earth.
Two advantages of a globe are:
It shows us the correct shapes and sizes of the land and water masses.
It gives us a good visual indication of the Earth’s surface.
Two limitations of using a globe are:
It is not easy to carry a globe from one place to the other due to its big size.
A globe does not show us various features like the vegetation and the climate of a place.
Explanation:
Asthenosphere is the answer of this question. It best describes the all above mention properties.
Asthenosphere is the the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
