Geography High School

Helium was discovered on earth years after it had been discovered on the sun.
a. True
b. False

Answers

Answer 1
The statement is true.
As weird as it may sound, helium was indeed first discovered on the Sun, and after some time on Earth. The first evidence of helium was observed on August 18 1868, as a bright yellow line with a wavelength of 587.49 nanometers in the spectrum of the Sun's chromosphere. This line has been detected by a French astronomer by the name of Jules Janssen during a total solar eclipse in Gantur, India. 

Related Questions

Most Middle East countries are highly dependent on food from abroad

Answers

The statement is true, most of the countries from the Middle East are heavily dependent on foreign food. Most of this region is desert or semi-desert, so agriculture is not an option. Only few parts manage to produce food, but that is nothing in the whole picture. So the lack of fertile soil and water in this part of the world, made it dependent on foreign food.

Which ground rule for group work was broken in the following scenario? Jan came to the meeting just as Antonia and Finn were taking their seats. Finn and Jan presented the progress they had made on the project since the last meeting. Everyone engaged in the subsequent discussions, asking questions and offering ideas. Be punctual Meet deadlines Equal responsibility Respectful communication

Answers

The group work expectation that was broken was that they didn’t work as a group they worked in pairs.

The diagram shows the global wind pattern in the lower atmosphere. What is the main factor that determines the global wind pattern? A) the directions of ocean currents B) uneven landforms on Earth’s surface C) Earth's yearly revolution round the Sun D) uneven heating of Earth's surface by the Sun

Answers

the answer is D) uneven heating of Earth's surface by the sun

Answer:

the answer is D) uneven heating of Earth's surface by the sun

Explanation:

The _______ era featured the longest periods with no life forms on earth.

Answers

The answer is - Archean.
The Precambrian is the eon before the Cambrian, when the so called life explosion occurred. The Precambrian eon is the earliest part of Earth's history, set before the current Phanerozoic eon. This eon accounts for about 88% of the history of the Earth. It is consisted of three eras, Hadean (no life), Archean (no life), and Proterozoic (life occurred). Both of the two earliest eras do not have life, but Archean is three times longer period than the Hadean, so Archean is the answer.

Answer:Precambrian

hope this helps :3

In three activities, how can I change my daily habits to help the ecosystem?

Answers

Instead of using a car, use a bike to help not pollute the air. Recycle water bottles. And use energy-efficient light-bulbs.
1. Save water as much as possible :

Hot water from the tap often requires running cold water until we can get hot water. In most cases instead of preserving the cold water in the container to use later, we let it run down the drain and get wasted. This happens in kitchen sinks, bathroom sinks and showers. On a daily basis, a lot of liters of water is wasted this way.

2.  Opt for reusable plastic bags :

Bags end up in landfills or causing litter in the environment. The danger of plastic bags is that most of them don't decompose. Animals and birds digest this material and die. Another environmental hazard from plastic bags is increased pollution in rivers, streams and oceans. Therefore, a reusable plastic bag reduces the frequency of buying and disposing, protecting the environment.

3.  Do not litter :

Packages whether it is food packaging or packages for other products have a “don't litter” or “throw in a rubbish bin” message and recycling sign. Regardless of that, there is rubbish all over. Avoid littering and using save and recommended manner of disposing of garbage is very important.

Which countries are known as the Baltic nations? Croatia Bosnia and Herzegovina Estonia Latvia Lithuania Romania

Answers

Croatia and Bosnia definitely and maybe Romania

Answer: Your answer is Croatia Estonia and Lithuania.

Bedrock and sediment in a stream is most susceptible to erosion if it is:

Answers

Bedrock and sediment in a stream are most susceptible to erosion if it is located in a turbulent part of the river. 

Constant and fast movement of the water causes the sediments to be displaced and erosion occurs. 

ANSWER:

Bedrock and sediment is most susceptible to erosion if it is located in the turbulent part of the stream or the river.

EXPLANATION:

The turbulent part of the river is the one where the water velocity is high. This high water velocity carries away bedrock and sediment easily. The edge where the bedrock and sediment is located tends to be very steep. This steepness makes it easy for the high velocity of water to carry away the bedrock and sediment. This bedrock and sediment is also carried to greater distances because of the great speed of water.

What are the 2 different types of igneous rock tectures?

Answers

There are many types of igneous rock textures. 

There is coarse grained texture

Fine grained texture

There is porphyritic texture

There are also a glass texture

Which of climate would not be found in Africa

Answers

The answer is D) tundra

Hope this helps 
Hey, mate thanks for posting this on brainly.com

it is 

_________
 tundra

The materials most commonly associated with earth failures are ______________. quartz clay minerals granite basalt

Answers

The answer is clay minerals 

hope this helped 

name at least two factors that affect weather patterns around the world

Answers

I would say air pressure also known as wind. And then also the evaporation from the oceans as it moves in and becomes rain. That’s what I would say at least hope this helped good luck!

Tornadoes although erratic are always characterized by ______ pressure.

Answers

the answer is low pressure
Other Questions
A ball is thrown downward from the top of a 190-foot building with an initial velocity of 21 feet per second. the height of the ball h after t seconds is given by the equation h equals negative 16 t squared minus 21 t plus 190. how long after the ball is thrown will it strike the ground? If 4.27 g sucrose (c12h22o11) are dissolved in 15.2 g water, what is the boiling point of the resulting solution? kb for water = 0.512c/m. In Ms. Dole's class, students received grades of 87, 72, 99, 93, and 84 on yesterday's quiz. What was the mean of the quiz grades? Find 2004-04-02-04-00_files/i0340000.jpg. Round the answer to the nearest tenth.A.46.1B.47.2C.54.9D.79.0 what is the best definition of the underlined word in the following line? other than these small businesses ,there are more shingled hoses,the same shape size and in the same state of mld decrepitude ,painted mint,or lilac, or powder blue,'' if you were starting a a now business describe at least three departments to the company that you would need right away why are these departments so important The orbit of the planets in our solar system is generally due to which characteristic of the Sun?A) the Sun's large volume B) the majority of the Sun is hydrogen C) the Sun's strong gravitational field D) the surface temperatures of the Sun are high _____ is an antianxiety drug that may impact levels of brain dopamine and serotonin but does not classify as a benzodiazepine or affect the neurotransmitter gaba. What is the length of a garden hose that is stretched diagonally corner-to-corner across a yard that measures 72 meters long and 60 meters wide? Round to the nearest meter. A crane is rented at $1000 per day plus a charge per hour of use. The crane was used for 7 hours on a day, and the total charge was $3450. Which equation can be used to find the charge x, in dollars, per hour of use? How does sir Gawain an the green knight fit into the medieval romance genre In the 1990s, many isolated individuals began to see the growth of federal prison populations as a problem. later they would form groups to protest the policies that imprisoned so many, but first they were part of: Write a program that reads three numbers and prints "increasing" if they are in increasing order, "decreasing" if they are in decreasing order, and "neither" otherwise. here, "increasing" means "strictly increasing", with each value larger than its predecessor. the sequence 3 4 4 would not be considered increasing The parents of students in your fourth-grade class want you to include moral issues in your classroom curriculum. a few parents who have read about kohlberg's theory of moral development want you to help the students progress to postconventional moral reasoning. you should reply by pointing out that: postconventional reasoning is probably an unrealistic goal for fourth graders. this is a good idea because postconventional reasoning will promote abstract thought. research studies indicate that most students have already reached the postconventional level by fourth grade. there is nothing you can do to promote moral development before students reach adolescence. Tissue in the central canal of bone that consists chiefly of fat cells is called vector works the same number of hours every week he worked a total of 532.5 and hours in the last 15 weeks. how many hrs did he work in one week Why do banks and other financial institutions require collateral for loans? Can I have some help with this question? A patrolman spends 25% every day completing paperwork. The patrolmans shift each day is 8 hours. How much of his time does he spend doing paperwork each day? In order for a fictionalized story to be based on real events the author should indicate