16. What are the two classes of
pure substances?
A. Atoms and molecules
B. Solutions and mixtures
C. Liquids and gases
D. Elements and compounds

Answers

Answer 1

Answer:

B and C

Explanation:

so so soryy if im wrong

Answer 2

Explanation:

I guess the answer is B and D

from which I know, D is for sure


Related Questions

What is a mutation process?

Answers

Answer:

A Mutation occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene. A Mutagen is an agent of substance that can bring about a permanent alteration to the physical composition of a DNA gene such that the genetic message is changed.

Explanation:

Answer:

Explanation:

A mutation is a change in a DNA sequence. Mutations can result from DNA copying mistakes made during cell division, exposure to ionizing radiation, exposure to chemicals called mutagens, or infection by viruses

What is the main factor that affects local winds?

Answers

Answer:

local winds blow between small low and high pressure systems.They are influenced by the local geography.

What is the predominant land use in north korea, south korea and japan

Answers

The answer is coastline lowlands. In Japan, there are 6,800 islands in its archipelago and 4 main islands. Most Japanese live along the coastal lowlands, the mountainous Korean Peninsula lies between China and Japan. Also, North and South Korea, most people live along the lowlands and the coastline.

The Kansas-Nebraska Act was written to gain support for the Dred Scott decision. the abolition of slavery. a transcontinental railroad. the expansion of banking.

Answers

Answer:

The abolition of slavery

Explanation:

This would be the most accurate answer because the K-N act was created to allow for popular sovereignty in addition to two new US territories. This would led to conflict between people for vs. against slavery. The dred scott case was not influential in the K-N act considering it was a court case fought over slaves being property in the south. The transcontinental railroad and expansion of banking were not involved with the K-N act.

Answer:

C. a transcontinental

Explanation:

i did it

1. Coruse hero what are the two major rivers of the mesopotamian valley? what modern country are these two rivers in today?

Answers

Answer: The Tigris and Euphrates Rivers. These two rivers are in modern day Iraq.

Mesopotamian civilization developed along the banks of the Tigris and Euphrates rivers in what is now Iraq and Kuwait.

What are the two major rivers of the Mesopotamian Valley?

It includes the Tigris and Euphrates rivers, which follow closely similar routes through the center of the Middle East.

The lower part of the region they described, known as Mesopotamia was one of the main centers of civilization.

Thus, The rivers that are located in the fertile valleys between are the Tigris and Euphrates rivers, the region is now home to present-day Iraq and Kuwait.

Learn more about Mesopotamian Valley:

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Austin run 6 miles in 15 minutes at the same rate how many miles would he run in 35 minutes

Answers

Answer:

14 miles

Explanation:

6 miles in 15 is equivalent to 24 mph. if you divide 24 by 60 you get 0.4, you then multiply that by 35 and you get 14

Systems naturally try to reach which of the following conditions?

Answers

Answer:

If it's in the body then it would be immune systems

Explanation:

Urbanization of a watershed is most likely to result in __________.Group of answer choices increased infiltration of rainwater an increase in the volume of water entering streams after rainfalla decrease in the likelihood of flash floodinga longer lag time between storms and the onset of flooding

Answers

Answer:

an increase in the volume of water entering streams after rainfall

Explanation:

The watershed rises the water in streams and other places full of water.

5. What is the chemical reaction at the heart of green plants today that changed
the atmosphere of the early earth?

Answers

Answer:

Over millions of years, a chemical reaction called photosynthesis was responsible for increasing the amount of oxygen in the atmosphere of the early Earth.

Why have the japanese traditionally built houses of rice paper and thin strips of wood?.

Answers

Answer:

I don't know much about Japanese stuff (despite being Chinese). I do know, however, that Japan, especially during old times, used these materials since their land has abundance of this. Japan is mostly forest. Rice is also used due to, yet again, abundance. In Asia, they didn't know much crops except for rice, and Rice is also extremely easy to grow since all you have to do is overflood the field. This art of construction was also a reason why there were constant fires in the area.

What are the advantages of producing electricity from water???


Answers

Answer:

Hydropower provides benefits beyond electricity generation by providing flood control, irrigation support, and clean drinking water. Hydropower is affordable. Hydropower provides low-cost electricity and durability over time compared to other sources of energy.

Explanation:

hope this helps

Hydropower provides benefits beyond electricity generation by providing flood control, irrigation support, and clean drinking water. Hydropower is affordable. Hydropower provides low-cost electricity and durability over time compared to other sources of energy.

Hope it helps you!!

Is this a rabbit or hare can someone help

Answers

Answer:

I'm pretty sure that is a rabbit because hares have longer ears

Explanation:

Hope this helps:)...if not sorry for wasting your time and may God bless you:)

What are the three compositional layers of the earth.

Answers

Answer:

The crust, the mantle, and the core.

Explanation:

These are the three compositional layers that the Earth is made of.

Bedding in sedimentary rocks is defined by: Multiple Choice resistance to erosion. Sediment size. All of the characteristics listed. Thickness. Color

Answers

The process of bedding in sedimentary rock is defined by all of the characteristics listed. Thus, sedimentary rocks bedding can be defined by:

ErosionSediment sizeThicknessColor etc

What is bedding in sedimentary rocks?

Bedding is a major feature of sedimentary rocks, that are often composed of strata of sedimentary layers formed one on top of another. Layers of sediments with varying particle sizes are accumulated on top of one another in sedimentary rocks bedding.

Bedding can occur when one distinctively dissimilar layer of sediment is deposited on top of a previous layer or when sedimentary rock is formed with a fresh layer of sediments.

Factors affecting bedding in sedimentary rocks include:

ErosionSediment sizeThicknessColor etc

Learn more about sedimentary rocks bedding here:

https://brainly.com/question/9461207

Rip currents are dreaded by surf swimmers everywhere. The standard recommendation for swimmers is if you get caught in a rip current, swim parallel to the shore. Why?.

Answers

you won’t get tired as easily and fighting against the current is ineffective

Explain why development is difficult in desert regions

Answers

Answer:

Extreme temperatures - temperatures in the Thar Desert can exceed 50°C in the summer months. It is hard for people to farm, work in mines or as tourist guides during these months as it is simply too hot. This makes development difficult

Narrow land strips connecting two larger landmasses.

Answers

Answer:

Narrow land strips connecting two larger landmasses are known as isthmuses.

What is the only continent in the world that has no volcanoes?.

Answers

Answer:

Australia

Explanation:

that's the answer

how do you think weathering impacts the earths surface?​

Answers

Answer:

The effects of weathering disintegrate and alter mineral and rocks near or at the earth's surface. This shapes the earth's surface through such processes as wind and rain erosion or cracks caused by freezing and thawing. Each process has a distinct effect on rocks and minerals.

Explanation:

Which of the following strategies will help you to stay focused and on topic while writing your essay?
a.
Outlining
c.
Neither 'a' nor 'b'
b.
The 5 paragraph format
d.
Both 'a' and 'b'



Please select the best answer from the choices provided


A
B
C
D

Answers

Answer:

D

Explanation:

character requirementtt

The ________ ocean is largest; the ________ ocean is smallest.

Answers

Answer:The largest ocean in the world - the Pacific Ocean - is ten times bigger than the smallest one - the Arctic Ocean.

Explanation:

Which of the following are needed to form a salt lake

Answers

Answer:

when freshwater flows into the lake, but cannot exit due to a lack of outflow. When water evaporates, the salty minerals are left behind to mix with new rainwater.

Explanation:

Answer:Essentially, salt lakes form when freshwater flows into the lake, but cannot exit due to a lack of outflow. When water evaporates, the salty minerals are left behind to mix with new rainwater. In short, if a lake has no outflow, it eventually becomes a salt lake.

Explanation:

The vegetation on a higher-latitude treeless plain (mostly mosses, lichens, and sparse grasses) is known as:

Answers

Answer:

tundra

Explanation:

it's on quizlet if you need it

This boulder in Yosemite National Park formed far away from where it now rests.


Which agent of erosion could have moved it here?

A. Glacial ice

B. Volcanic eruption

C. Wind abrasion

D. Tectonic stress​

Answers

Answer:

A. Glacial Ice

Explanation:

Please Help!!!!!!!
Identify the countries labeled on the following map.

Answers

search Europea map

It's no letting me tipy the countries

Which process results in a decrease in relative humidity?.

Answers

Answer:

The answer would be warming in the air and if the temperature rises.

Explanation:

Hope This Helps!

-JUSTIN:)

15 POINTS!!! HELP!!! DUE TOMORROW!!!
Through what processes has tongariro transformed over time???

Answers

Through the processes that result from intrusion into bedrock and extrusion onto the Earth's surface.
The Tongariro complex of volcanic cones and craters was formed by eruptions from at least 12 vents over more than 275,000 years. Erosion during the last Ice Age has worn away what was once a substantial mountain into the world famous hiking destination that it is today.

How the structure of a country population changes between stage 2 and 4 in the Dtm

Answers

Answer:

In stage 2 they diverge , as the death rate falls relative to the birth rate. In stage 3 they converge again, as the birth rate falls relative to the death rate. Finally in stage 4 the death and birth rates are balanced again but at a much lower level.

Whats the definition of latitude zone? Give me a short definition

Answers

The latitudes where the sun strikes the earth directly at the time of the June and December solstices.

Good Luck!

how many tropical storms hurricanes and tropical depressions have hit new york city sice 2000

Answers

Answer:

85

Explanation:

Eighty-five tropical or subtropical cyclones have affected the state of New York since the 17th century.

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