Ss2 Tech quiz

The primary source of energy in any ecosystem is

• Producer

• Herbivore

• Carnivore

• Omnivore

An abiotic part of an ecosystem; made of small pieces of rock, water and decaying matter.

• sunlight
• oxygen
• water
• soil

A lion that eats a zebra that eats grass is a

• primary consumer

• secondary consumer

• tertiary consumer

• quaternary consumer

Individuals that can breed with one another make up a

• species
• population
• community
• ecosystem

An abiotic part of an ecosystem; this gas is required by all living things.

• oxygen
• ecology
• biotic factors
• jellybeans

An abiotic part of an ecosystem; required by plants to perform photosynthesis.

• water
• soil
• sunlight
• oxygen

Type of mirror used as a side mirror on a vehicle to provide a wide angle view...

• Plane

• Convex

• Concave

Which of the following is not self luminous?

• Incandescent bulbs.

• Lighted candle .

• The moon .

• The sun.

Type of mirror used in a convenience store to provide a wide angle view...

• Plane

• Convex

• Concave

Which of the following is true for the image formed by a convex mirror?

i. the image is always virtual

ii. the image is always erect

iii. the image lies between pole and focus

iv. the image is never magnified

v. the focus length is negative

• i only

• i and ii only

• ii and iii only

• i, ii, iii and iv only

• all five