Which are examples of how farmers can prevent topsoil erosion?

1. Unlike catastrophism, _______ states that mountains formed slowly over time. 2. William Smith was working as a surveyor in th

Viefleur [7K]

Answer:

uniformitarianism, Fossil groups, 48 million years ago.

Explanation:

Uniformitarianism is the doctrine of uniformity that assumes that same environmental laws and process operate till date that has also occurred on the past but not with the same uniformity. Unlike the atmospheric that is short-lived and sudden changes over the period of time.

William Smith was a geologist who has noticed a certain type of fossil in a certain layer of sedimentary and igneous rock. A similar layer of strata could be found in the areas that were further apart.

The Permian period was from 229 to 251 million years and was the last period of the paleozoic era and is recorded for the last major extinction in the history of life in earth and it lasted for 48 million years.

7 0

3 years ago

The _ of each element have a characteristic number of _ arranged in _. The number of _ determines what types of bonds or ions th

Wewaii [24]

The words that fill in the blanks in order are;

atoms
Electrons
shells
Valence electrons
Electron distribution
Molecules
Basic atoms
Charge distribution
Interact with other molecules electron
Harm living organisms

Atoms are composed of electrons. These electrons are arranged in shells. The number of valence electrons (outermost shell electrons) determine the kind of bonds that can be formed in a molecule.

In a molecule, charges are distributed in a unique way and the charge distribution in a molecule determines how the molecule interacts with other molecules. Different molecules can be made by arranging the same basic atoms in different ways.

Harmful substances can be formed when atoms of elements combine in new ways in the environment.

Learn more; brainly.com/question/14156701

6 0

2 years ago

Which is a characteristic of animals that are in the same food web?Required to answer. Single choice.

mina [271]

They are in the same ecosystem

4 0

2 years ago

Plz help Me i will really appreciate it

Artist 52 [7]

Answer:

An energy pyramid is a model that shows the flow of energy from one trophic level to the next along a food chain. The pyramid base contains producers—organisms that make their own food from inorganic substances. All other organisms in the pyramid are consumers

Explanation:

8 0

2 years ago

Pain signals often have two components: an acute sensation of "first pain" which is felt almost immediately after an injury, and

o-na [289]

Answer:

This suggests that neurons that send the signals that we perceive as first pain Myelinated Tpye A-delta___, and neurons that send the signals that we perceive as second pain Unmyelinated-Type C.___.

Explanation:

Physiologically, primary afferent neurons that innervated the the touch, pain, temperature,and pressure receptors in the effectors to input sensory signals to the spinal cord and the brain are categorized based on their diameter, sizes, and nature of myelination. Based on this;

A-alpha has the largest diameter, myelinated, and sensitive to sensation from the muscle cells

A-beta are next in diameter, myelinated and sensitive to sensation of touch.

A-delta followed in diameter, and size. They are mylinated, and sensitive to pain and temperature.

C-fibres are least in diameter, they are unmyelinated, but sensitive to pain, touch and temperature.

Therefore, if the speed of conduction,of action potential in a neuron depends on the diameter(thickness) and myelination of the axon(saltatory conduction) :

''then, acute sensation/ first pain should be transmitted by the A-delta fibre. While the the slower/second pain should be transmitted by the slower unmyelinated - C-fibres''.

5 0

3 years ago