Newton
_______________ are the producers in a food chain.
plants
The source of energy in every food chain is the ______.
sun
The left side of the heart pumps blood (with/ without) oxygen?
with
What is the name of the liquid our kidneys release?
It contains waste products and sometimes excess water.
Urine
Consumers can be carnivores, herbivores, or __________.
omnivores
The substances which cause pollution are called?
Pollutants
What is name is given to the two-bean shaped organs in the body?
Kidneys
When we eat food enters the stomach through the _______.
Gullet/ oesophagus
What is air pollution?
It is the release of harmful and poisonous gases into the air we breathe.
Mention one cause of air pollution.
dust from construction sites
smoke from cars
burning of coal and fuel
improper waste disposal
The circulatory system is made up of the heart, blood and __________.
Blood vessels
Burning of coal, oils and fossil fuels pollute the environment. List other clean sources of energy.
solar energy
wind energy
water energy
What effect does acid rain have on plants?
Acid rain kills plant and animals which live in the soil.
Instead of burning waste, what can we do with it?
Recycle them or reuse them
The nervous system is made up of the brain, spinal cord and __________.
Nerves
During which process does the diaphragm relax by moving up?
exhalation or breathing out
Which gas is responsible for global warming?
Carbon dioxide
What gas causes acid rain?
1. Sulphur dioxide
2. Nitrogen oxides
What is acid rain?
When sulphur dioxide gas and nitrogen oxides mix with rain water.
This harmful and deadly to plants and animals that live in the soil.
What is the special machine which is used to filter the blood of a person whose kidneys are destroyed?
Dialysis