Year 9 Science

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Global warming is the

• process of using greenhouse gases to trap heat in the atmosphere

• observed and predicted rise in Earth's average surface temperature

• change in global weather patterns

• melting of the polar ice caps.

Which group of the periodic table is composed of inert (not reactive)  gases?

• alkali metals

• alkaline earth metals

• halogens

• noble gases

What are the potential consequences of global warming?

• Rising sea levels

• Increased frequency of extreme weather events

• Disruption of ecosystems

• All of the above

What is the importance of nitrates for plant growth?

• Enhancing photosynthesis

• Supporting root development

• Promoting flower blooming

• Stimulating protein synthesis

Plants need magnesium to make _______________

• Chlorophyll

• Starch

• Energy

• Protein

The chart that shows the arrangement of elements in order by their atomic number

• Electron Cloud

• Periodic Table

• Atomic Mass

Which of the following nutrients deficiency can cause this effect?

• Phosphorus

• Magnesium

• Nitrogen

• Calcium

How do living organisms return carbon to the atmosphere in the carbon cycle?

• respiration and photosynthesis

•  decomposition and respiration

How many protons are in Beryllium?

• 4

• 9

• 5

• 2