People and the Earth's Ecosystem

Planet is covered with 80% water.

• True

• False

Answer explanation

Planet is covered with 70% water.

Earth is mostly compose of what elements?

(you can choose more than one items)

• Oxygen

• Aluminum

• Iron

• Carbon

• Silicon

Eliminate one.

• Humidity

• Temperature

• Eukaryotic cell

• Gravity

Answer explanation

Humidity, temperature and gravity are under abiotic.

What are the two seasons in the Philippines?

• Dry

• Rainy

• Wet

• Summer

Answer explanation

Dry and wet are the seasons in the Philippines, rainy and summer are just misconceptions.

How many levels of ecological organization do we have?

• 5

• 6

• 7

• 8

Select the terrestrial animals.

• Elephant

• Sea urchin

• Kangaroo

• Whale shark

• Corals

What are the three general habitats?

• Terrestrial habitat

• Rainforest habitat

• Tundra habitat

• Marine habitat

• Freshwater habitat

It is where flora and fauna lives.

• Habitat

• Terrestrial

• Tundra

• Ecosystem

Choose two items that belongs to biotic factors

• worm

• soil

• rattle snake

• sand

Limiting factors of human population.

• 1-2 child policy in China

• Poverty

• Availability of vitamins

• High temperature

• Pandemic