1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ElenaW [278]
3 years ago
11

Several key factors help to determine the types and numbers of organisms found in the various layers of both freshwater and mari

ne systems. What is not one of these? a. algal bloom b. availability of food c. temperature d. availability of nutrients e. dissolved oxygen levels
Geography
1 answer:
bearhunter [10]3 years ago
7 0

Answer: a. algal bloom

Explanation:

The availability of food in the systems can tell the types and numbers of organisms in the systems by checking which types of organisms eat the food available as well as the quantity available to see the number of organisms.

Temperature and dissolved oxygen levels also play a huge part in determining the feasibility of organisms staying in the system. The availability of nutrients goes hand in hand with the availability of food in determining the organisms present.

Algal bloom is not a factor in determining the types and numbers of organisms found in a system because the conditions that caused this bloom might not be suitable for other organisms as well.

You might be interested in
Hi anyone able to explain fully about the continental-continental plate convergence ? I’m a little confused , thanks!!
PilotLPTM [1.2K]

Answer:

1. Continental-continental convergence are both <em>continental crust</em> plates.

2. Buoyancy basically means these plates are light float on top of the Asthenosphere.

Explanation:

1. To go a little more into detail, this type of convergence ocurrs when two plates made of continental crust (not oceanic) collide. In the case of ocean-continent convergence, the denser oceanic crust sinks underneath the lighter continental crust.

In this scenario, we have two plates, neither of which want to sink, so instead of going down they just crumple and fold and keep colliding. This collision creates very high mountain ranges such as the Himalaya and usually doesn't contain any volcanic activity because no magma is capable of penetrating through so much crustal material.

2. As for why continental crust is buoyant and doesn't sink has much to do with its composition. Continental crust is made mostly of silicate material. This is very different from oceanic crust which is made of basaltic rocks and is therefore heavier. The term buoyancy refers to the 'floating action' of the continental crust on top of the uppermost mantle.

4 0
3 years ago
9. Which forces do scientists believe are responsible for the movement of Earth's
SIZIF [17.4K]
The main reason why the tectonic plates move is the conversational currents. There is magma between the upper mantle and the asthenosphere that heats up at the upper mantle. The weight is so small that the magma rises with the help of these conversational currents. When the magma has ascended towards the asthenosphere, it has nowhere to go so the magma lies along the asthenosphere. There the magma cools down again because the asthenosphere is colder than the upper mantle, which makes the magma heavier and goes back down to the upper mantle, where the magma heats up again and everything starts all over again and so it goes on over and over again. Scientists have concluded that the earth's gravity causes two other processes that also cause the tectonic plates to move.

Ridge push - in the spreading zones, the sides of the tiles are raised and slide to the side as in a slide.
Slab pull - when a plate is pulled down by gravity in a subduction zone like an anchor.
4 0
3 years ago
Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option
Snezhnost [94]

Answer:

Abyssal Hill

Explanation:

The given words/phrases are directly related to the seafloor spreading process.

In the case of divergent plate motion, plates move in the opposite direction. Due to this, the thickness of the lithosphere decrease and with the increasing time, it results in the eruption of magma at the seafloor. In the ocean basin, these magmas erupt along the mid-oceanic ridge, and in the continental areas, it leads to the formation of a rift and later forms a rift valley.

Some of the segments of the mid-oceanic ridge in the oceans are quite gentle with no roughness along the slope and some segments are steep and rough. It occurs because of the differences in the spreading rate, and this is commonly known as oceanic rise. The rocks that are formed at the mid-oceanic ridge are the youngest of all other rocks.

The odd one here is the abyssal hill, which is formed generally at the seafloor. When the areas at the abyssal plains are comprised of large deposits of sediments forming a hill, then it is called an abyssal hill. It is not related to the seafloor spreading. It is simply a feature of the ocean floor.

4 0
3 years ago
Are most of the jobs in Puerto Rico primary, secondary, tertiary, quaternary
igomit [66]

yes most jobs are primary, secondart, tertiary, and quaternary

6 0
3 years ago
Describe two characteristics of the European Union
Natalija [7]

Answer: Combats social exclusion and discrimination. Promotes scientific and technological progress.

3 0
3 years ago
Read 2 more answers
Other questions:
  • The largest pieces of land on earth are called
    11·1 answer
  • In which country is farming more profitable? Canada Greenland
    7·2 answers
  • Which sustainable agricultural practice involves tilling and planting on ridges that are across or perpendicular to a slope? A.
    14·1 answer
  • CAN SOMEONE​ TELL ME THE INFORMATION OF EARTHQUAKE<br>ONLY 5 POINTS
    6·1 answer
  • The port city which exports much of Brazil's
    12·1 answer
  • Solutions to tropical cyclone ​
    14·1 answer
  • 1- When you translate a figure right or left, it changes the value of which coordinate, the x or the y? 2- When you translate a
    12·1 answer
  • Which country is currently facing an aging population/negative population growth challenge?
    14·2 answers
  • Fossils of tropical plants and animals can be found buried in limestone rock in the north texas area. These plants and animals a
    14·1 answer
  • How does a farmer with a commercial farm separate chaff from the wheat grain
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!