Chemical weathering occurs because

water dissolves oxides making it acidic

Many Australian soils are salty. This is due to the fact that:

most soils were once marine sediments

Water is called the “biological solvent” because:

chemicals in a cell are dissolved in water.

Along with light energy, the equation for photosynthesis is

carbon dioxide + water --> glucose + oxygen

An effective strategy to combat dry-land soil salinity would be to:

prevent land clearing, and re-vegetate cleared land.

A solvent is a substance that

is able to dissolve other substances

Groundwater aquifers rise due to

land clearing that removes deep-rooted plants

Respiration is best described as

unlocking or making available the energy from food

The process of “osmosis” always involves:

water diffusing through a semi-permeable membrane.

studbud

Year 11 Earth & Environmental Science - Water Issues

23 termsStudBud Administration207 plays

Yr 11 E&ES Water Issues Module

Flashcards23 cardsFPractice quizPHost liveL

Questions 23

Answers

1
An example of physical weathering can be due to
temperature changes
abrasion
all of the above
organics
2
Chemical weathering occurs because
water dissolves all rocks
water dissolves oxides making it acidic
water dissolves only some of the rocks
water has a pH of 7
3
Grey water recycling includes
collecting rainwater for lawn use
reuse of sewage water
reuse of laundry water
agricultural water run-off collection
4
An example of mechanical weathering is
carbonation
abrasion by wind
oxidation
hydrolysis
5
What type of weathering is 'onion skin' weathering?
physical
chemical
6
The picture is the entrance to Grill cave at Bungonia What type of weathering formed the caves?
physical
chemical
7
True or false. The solubility of oxygen in water decreases with increasing temperature
False
True
8
Many Australian soils are salty. This is due to the fact that:
most soils were once marine sediments
the heat evaporates the water and leaves salt behind
the eroding weathering of granite & basalt makes salt water
all of Australia was once under water
9
Most of the water on Earth exists as:
water vapour
salt water
freshwater
glaciers
10
Water is called the “biological solvent” because:
water is used or made in many cell reactions.
chemicals in a cell are dissolved in water.
many organisms live in water habitats
water is used to transport substances within organisms.
11
Along with light energy, the equation for photosynthesis is
carbon dioxide + water --> glucose + oxygen
carbon dioxide --> glucose + oxygen + water
oxygen + water --> carbon dioxide + glucose
glucose + water --> carbon dioxide + oxygen
12
The amount of fresh, liquid water available to terrestrial organisms is closest to:
2%
0.02%
20%
0.2%
13
An effective strategy to combat dry-land soil salinity would be to:
increase irrigation rates, to wash salt from the soil.
develop new species of salt-tolerant crops.
prevent land clearing, and re-vegetate cleared land.
dig sub-soil drains to channel salt water back to the ocean.
14
A solvent is a substance that
dissolves in other substances
is able to dissolve other substances
15
In the “re-claiming” of water from sewage effluent, the process of “reverse osmosis”:
removes dissolved salts
removes suspended solids
is the same as microfiltration
kills bacteria and viruses
16
The “sphere” of the Earth comprising the crust and upper mantle is the:
hydrosphere
lithosphere
biosphere
atmosphere
17
Look carefully at the photo. What type of weathering caused these fractures?
chemical weathering
bioerosion
frost wedging
abrasion
18
Groundwater aquifers rise due to
normal evapotranspiration processes in plants
the amount of water recharge in a catchment
land clearing that removes deep-rooted plants
reafforestation programs
19
Respiration is best described as
using oxygen and water to produce glucose
the production of sugars using sunlight
using carbon dioxide and water to produce glucose
unlocking or making available the energy from food
20
A solute is a substance that
is able to dissolve other substances
dissolves in the solvent
21
The water cycle is driven by
gravity only
solar energy and gravity
solar energy only
UV-B light
22
The main gas emitted from a volcano is
methane
sulfur dioxide
ammonia
water vapour
23
The process of “osmosis” always involves:
the diffusion of solutes (e.g. salt) in or out of a cell.
cells becoming “plasmolysed” as they gain water.
cells losing water and gaining salt.
water diffusing through a semi-permeable membrane.

Year 11 Earth & Environmental Science - Water Issues Flashcards | StudBud