Welcome to your General Science Grade 8 Unit 5
Choose the correct answer from the given alternatives
2.
What is the primary source of energy in most ecosystems?
3.
Which of the following is an abiotic component of an ecosystem?
4.
What is the role of decomposers in an ecosystem?
6.
What is the importance of biodiversity in ecosystems?
7.
which of the following is a non-renewable natural resource?
8.
What is the purpose of the 3 R's in environmental conservation?
9.
Which gas is primarily responsible for the greenhouse effect?
10.
What is deforestation?
11.
How much of Earth's water is freshwater available for human use?
12.
What is the main cause of water pollution in rivers and lakes?
13.
What is the purpose of a watershed?
14.
How can individuals contribute to water conservation?
15.
What is the process of removing salt from seawater to make it suitable for drinking called?
16.
Which of the following is a major air pollutant released from vehicle exhaust?
