What are the three factors a niche includes?
What may result when the environment becomes unfavourable to the organisms?
I: The organisms may die.
II: The organisms may adapt.
III: The organisms may move to another place.
Tectonic plates may move because of convection currents that occur in the mantle. What is convection?
The use of plastic materials adds to the pollution of the environment. Which of the following statements explain it?
I: They take a very long time to decompose.
II: They are produced from natural resources.
III: They are waterproof.
IV: They produce harmful gases when burnt.
Which of the following is an example of an ecosystem?
An example of a producer is:
Which of the following would be considered a natural resource?
Kelly disposed off some clear liquid chemicals into a lake. Which of the following would be observed in the pond community?
I: A smell could be detected from the lake.
II: The water in the lake was stagnant.
III: Dead fishes can be seen floating on the surface of the lake.
IV: Leaves of plants growing by the lake turned brown.
Water pollution can affect the ability of organisms to survive. Which of these statements is true regarding the chemical pollution of water?
Which human activity will most likely have a negative impact on global stability?
One job that many governments have is stewardship of Earth's resources. Stewardship is the careful and responsible management of a resource. Why is stewardship of Earth's resources important?
Which of the following activities does not have a negative impact on the environment?
Which of the following are non-biodegradable materials?
IV: Prawn shell
One biotic factors that limits the carrying capacity of any habitat is
Two closely related species of birds live in the same tree. Species A feeds on ants and termites, while Species B feeds on caterpillars. The two species coexist successfully because
The burning of fossil fuels can lead to acid precipitation. What do fossil fuels generate that is needed to form acid precipitation?