Answer:
a. True.
b. False.
c. True.
d. True.
Explanation:
A landform refers to a geomorphic or natural feature of the Earth's surface, which typically makes its terrain. Some examples of landforms on planet earth are mountain, plains, volcanoes, valley, hills and plateau.
Basically, the tectonic plates such as the oceanic and continental lithosphere interact in three (3) ways and these are; divergent, transform and convergent boundaries.
a. Plates shift the continents around as they move, so Earth's surface is constantly changing.
b. False: the contacts between plates are called passive margins. A passive margin is a region where continents have rifted apart and are then separated by a body of water such as an ocean.
c. True: plates may consist of both ocean floor and continental crust, but never just oceanic or continental crust.
d. True: there are 120 major tectonic plates.
Answer:
Green algae, which is also known as chlorophyta belongs to the phyla Thallophyta.
Answer: A)is greater near the source than near the mouth
Explanation: A stream is a small river; a large creek; a body of moving water confined by banks.
Gradient is an area of ground that tends evenly upward or downward.
A stream gradient can be defined as an area of water that that tends evenly upward or downward of the stream and it is measured by the difference in elevation between two points on a stream divided by the distance between the two points that the water actually flows.
The gradient influences the speed in respect to time of the stream. The steeper the gradient, the higher will be the speed of the of the flow.