<h2>
Answer: They are extra-high tides and extra-low tides.</h2>
Explanation:
Tides are periodic movements of the great masses of water on our planet as part of the gravitational attraction exerted by the moon and the sun on Earth.
In this sense, there are two very special cases: The Spring and Neap tides.
<u>Spring tides </u>
Occur when there is a full moon or new moon, which makes the <u>tides higher.</u> During these lunar phases, the Moon, the Earth and the Sun are aligned and the gravitational attraction power is greater.
<u>Neap tides </u>
Occur when the moon, the earth and the sun form a right angle (
), being the gravity attraction on the masses of water the minimum. This happens in the crescent and wanning phases.
Answer:
B. Aerobic bottom water
D. High organic productivity in the overlying oxygen rich water
Explanation:
A Shale is a sedimentary rock usually formed from silt and clay-size mineral. There are different colors of Shale. The Black Shale is formed under anaerobic conditions. This means that oxygen is deficient in the water where the Shale forms.
A little amount of organic materials is required for the formation of Black Shale and because Black Shale is formed in an environment lacking oxygen, an oxygen-rich water would not be necessary for its growth. Sediments are necessary in the formation of Black Shale.
Answer: He found a rock, and the crystals inside are minerals.
Options:
- He found a rock, and the crystals inside are minerals.
-
He found a mineral, and the crystals inside are rocks.
- He found a rock, and the crystals inside are rocks, too.
-
He found a mineral, and the crystals inside are made of dirt.
Explanation:
A rock differs from a mineral. While they are both solid, a mineral has a crystalline structure while a rock does not have a specific structure. Rocks are made up of different mineral structures and that is what Joseph discovered on dropping the rock, one of the component minerals in the rock. For example, a type of rock, slate may consist of feldspar, quartz among many other minerals.
The international division of labor - specialization of individual countries in the production of certain products.The international division of labor based on the differences between the countries in the natural and climatic conditions, geographical location, natural resources and energy sources.At the same time the world united in a single trade and economic system that allows you to share the most products with each other.
