If the secondary consumer has 30 kcal of available energy, how much does the tertiary consumer receive? 300 kcal
30 kcal
3 kcal
0.3 kcal

3

Explanation:

ok so if primary had 300 secondary would have 30 so therefore third would have 3 fourth would have 0.3 see the pattern 10% is lost as heat every time

air, water, heat and noise pollution can all be caused by producing and using technology. consuming resources - non-renewable resources, including precious metals like gold, are used to make technology