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Astronomy

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Geoffrey Herzog

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Cards in this guide (19)
To get into space how high up do you have to travel

80KM or 50 miles is what the height the government uses to get the space shuttles into space

What is left behind after a star with four or more stellar masses has died

A black hole.

What are the names of the two main types of wetlands
  1. marshes
  2. swamps
Do the gradient levels and the sediment load increase or decrease as the river ages

As a river gets older sediment load decreases due to the age of the river and erosion

How do wetlands affect water quality in an area

The grasses and other plants in a wetland act as a filter for the water, removing contaminants, cleaning up the water. The soil holding the plants acts like a sponge, sops up pollutants.

In what layer can a hot air balloon travel

STRATOSPHERE

Why cant a hot air balloon go to higher layers

Several reasons. The prominent reasons are that if you go too high you'll run low on oxygen and possibly be blown off course by strong winds.

In which layer of the atmosphere did the Concorde cruise

All passenger airplanes cruise at the stratosphere.

What steps of water cycle cause rainy weather conditions

the clouds

What temperatures would you expect in the mesosphere

Which mesosphere? The one for the Earth's atmosphere or for the inside? Well, I'll talk about inside. Extremely hot temperatures (since it is the middle of the Earth's inside) so about a few thousand celsius. The mesosphere in the atmosphere is very cold with temperatures as low as -90 degrees celsius.

What type of clothing would you need to wear if you could visit the meosospher

anything to keep you warm

What type of clothing would you need to wear if you could visit the mesosphere

very warm clothing

What is the big bang and what evidence is used to support it

Evidence is not used to support theory.

Theory is used to explain evidence, and to predict where and how new evidence may be found.

When new evidence is found that theory can't explain, the prevailing theory is modified or discarded.

Why wouldn't the Concorde cruise travel higher

It did, the Concorde travelled at 60,000 feet and it's cruising speed was 1,350 MPH. It went higher because of its higher cruising speed.

What two functions of bacteria in the nitrogen cycle

Bacteria function in the nitrogen cycle as nitrogen fixers and denitrifiers. Nitrogen fixing bacteria take in atrmospheric nitrogen gas and "fix" it into a nitrate or nitrite that can be used by plants. Denitrifiers decompose dead plant tissues and release nitrogen to the atmosphere.

Extends 50-85 km above earth's surface

Mesosphere

How do water molecules in the solid phase compare with water molecules in the gaseous phase

The shape, size, and mass of water molecules do not change between the solid and gas phases.

What are the two characteristics of the thermosphere make it necessary for us to use a space shuttle to get through it

All spacecraft returning to Earth, space shuttle or otherwise, experience extreme heating as they go through the upper levels of atmosphere. The shuttle orbiters used ceramic tiles and other heat protection. Capsules such as Soyuz, Dragon and Orion use heat shields which direct heat away from the vehicle.

What are the characteristics of this layer that make it the ideal layer for the Concorde to travel

I have no idea

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