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3 years ago

How do global winds affect climate?

Biology

2 answers:

kirza4 [7]3 years ago

8 0

Global winds affect the heating of the Earth’s surface. They also affect the currency of the oceans surface.

Vlad1618 [11]3 years ago

3 0

These global wind systems, in turn, drive the oceans' surface currents. Unequal heating of the Earth's surface also forms large global wind patterns. In area near the equator, the sun is almost directly overhead for most of the year. Warm air rises at the equator and moves toward the poles ((from google))

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Which of the following is an example of a negative feedback loop? Select one: a. Uterine contractions to expel a fetus during la

PtichkaEL [24]

Answer:

Explanation:

The correct answer would be increasing heart rate to compensate for low cardiac output.

The negative feedback loop is the mechanism that is utilized in the maintenance of homeostasis. They work by opposing the processes that bring about a deviation away from setpoints, that is, the normal range of operation of physiological processes in the body.

For example, when the heart rate goes below the setpoint, the negative feedback loop swings into action through the sensor, the control center, and the effector to return the heart rate to the normal operating range.

Correct option: d

6 0

3 years ago

g The primary detrimental effect of the presence of large amounts of biodegradable organic materials in water is ________. The p

Lelu [443]

Answer:

It causes oxygen depletion in the water

Explanation:

When the amounts of organic matter in the water are significant, the activity of aerobic bacteria and other decomposers increases.

Organic matter suffers decomposition in the presence of oxygen. Microorganisms degrade it while consuming dissolved oxygen in the process. Bacteria show fast and exponential growth, so the more organic matter, the more aerobic bacteria, and the less available oxygen in the water.

Organisms that usually inhabit these waters are affected by the lack of oxygen. Plants, algae, animals, and other invertebrates that need it to survive, find themselves limited in these environmental conditions. Eventually, they dye and contribute with more organic matter.

Little by little, sedimentation begins caused by the death of vegetables and animals, sinking in the bottom.

When oxygen disappears, anaerobic bacteria grow and act, producing fermentation.

4 0

3 years ago

Check all statements that are true about nuclear radiation.

Darya [45]

Answer:

All these are true statements.

Alpha radiation is a helium nucleus.

Beta radiation can be stopped by thick wood or a sheet of aluminum.

electrons are beta radiation.

Alpha radiation is easily stopped by paper or clothing.

Explanation:

Alpha beta and gamma radiations are the examples of ionizing radiations. When an atom is an excited state and having high energy, the atom is in unstable state. The excess of energy is released by the atom to get the stability. The released energy is in the form of radiations which may include alpha, beta, gamma, X-ray etc.

Beta radiations:

Beta radiations are result from the beta decay in which electron is ejected. The neutron inside of the nucleus converted into the proton an thus emit the electron which is called β particle.

The mass of beta particle is smaller than the alpha particles.

They can travel in air in few meter distance.

These radiations can penetrate into the human skin.

The sheet of aluminium is used to block the beta radiation

⁴₆C → ¹⁴₇N + ⁰₋₁e

The beta radiations are emitted in this reaction. The one electron is ejected and neutron is converted into proton.

Properties of alpha radiation:

Alpha radiations are emitted as a result of radioactive decay. The atom emit the alpha particles consist of two proton and two neutrons. Which is also called helium nuclei. When atom undergoes the alpha emission the original atom convert into the atom having mass number less than 4 and atomic number less than 2 as compared to parent atom the starting atom.

Alpha radiations can travel in a short distance.

These radiations can not penetrate into the skin or clothes.

These radiations can be harmful for the human if these are inhaled.

These radiations can be stopped by a piece of paper.

₉₂U²³⁸ → ₉₀Th²³⁴ + ₂He⁴ + energy

Gamma radiations:

Gamma radiations are high energy radiations having no mass.

These radiations are travel at the speed of light.

Gamma radiations can penetrate into the many materials.

These radiations are also used to treat the cancer.

Lead is used for the protection against gamma radiations because of its high molecular density.

The lead apron are used by the person when treated with gamma radiations.

Lead shields are also used in the wall, windows and doors of the room where gamma radiations are treated, in-order to protect the surroundings.

False statements:

Gamma radiation is an electron (false)

Gamma radiation can be stopped by clothing, (False)

Alpha radiation is a high energy electromagnetic wave (False)

Stable and non-stable nuclei can give off radiation. (false)

only unstable nuclei give off radiations to get stability.

8 0

3 years ago

Cypress trees are adapted to living in _____. A. streambeds B. salt marshes C. bogs D. swamps

RoseWind [281]

Cypress Trees are adapted to living in Swamps

Option D is the Answer

3 0

3 years ago

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A ___________________ may be formed from many related hypotheses that have been tested and support the evidence.

mafiozo [28]

Answer:

A  theory  may be formed from many related hypotheses that have been tested and support the evidence.

Explanation:

A THEORY -: A theory is a well-established, tested explanation that gives some part of the natural world a unified description. A hypothesis is focused on substantiated knowledge, repeated testing, and a large community of scientists / researchers agree on it.

The aim of a theory is to try to understand phenomena that many researchers have examined extensively and carefully over time. A hypothesis does not prove that the "unified description is correct." However, because the theory is the result of scientifically based research, the theory (as opposed to a single hypothesis) is more likely to be correct. Any hypothesis can (and should) be tested, but many trained scientists must scientifically perform and study the experiments.

4 0

3 years ago

Read 2 more answers