Answer:
Continental drift was a theory that explained how continents shift position on Earth's surface. Set forth in 1912 by Alfred Wegener, a geophysicist and meteorologist, continental drift also explained why look-alike animal and plant fossils, and similar rock formations, are found on different continents.
Explanation:
The question is <u>incomplete,</u> options are given below:
A. A tropical area with moderate rainfall
B. A temperate forest
C. A steep slope
D. A river delta
Answer:
<em>C.</em><em> A steep slope</em>
Explanation:
Erosion is a <u>weathering process</u> that causes removal of the top layer of sediments from any geological material (rock, plain area, etc) and then transports that material to another place. This process is governed by the combined action of wind, water (precipitation), gravity, and other meteorological parameters.
For this question, four options are given among which rate of erosion would be faster than the rate of soil formation for a steep slope. For a steep slope, the movement of water and wind would be stronger along with high gravitational pull as compared to the tropical area, river delta, and temperate forest. In principle, in the temperate forest, the erosion would be lowest due to the presence of plant roots that support the soil material to stay aggregated and resist against weathering.
Answer and Explanation:
The ecological footprint is an indicator of sustainability at an international level that integrates all the human impacts over the environment, considering the necessary resources and the generated residues to maintain the modern consumption model. It refers to the productive ecological surface needed to produce resources to consume by one person and to absorb the residues that are produced.
By constant contamination and indiscriminately use of natural resources the impact generated by human in the earth is unmeasurable.
The tragedy of the commons refers to how some people, acting by their own needs or interests, may exceed the use of natural resources, affecting their population and, therefore, other users. These individuals over explode resources thinking only in the present, but not in the future.
The ecological footprint as an indicator makes visible the unsustainable lifestyle of human beings, especially those of the first world. If this lifestyle would project to the rest of the world equally, natural resources would completely disappear. More developed countries are over contaminating and over exploding natural resources, affecting other countries of the third world, and even themselves.
(1) wave frequency is the number of waves passing a point at a certain time. Usually, this is expressed in a unit of 1/s or Hz.
f = (600 waves) / (8 hours x 3600 seconds/1 hour) = 1/48 or 0.02 Hz
(2) wave period, T = 1/f
T = 1/48 Hz = 48 s
(3) wave speed
speed = (600 waves)(3 ft/1 wave) / 8 hours
= 225 ft/h
