Fact 1: Cutting down trees has a negative impact on an ecosystem. Fact 2: Plants include trees. Given the two facts above, answer the question "Doing what to plants has a negative impact on the ecosystem?" with the following options: - planting them - deforestation - cutting them down - Pesticides - watering them - massive damage - sitting under them - Abnormal cell growth
cutting them down

(Question)
Fact 1: Streams may start with runoff or water seeping out of a spring. Fact 2: Lakes and streams are sources of drinking water. Given the two facts above, answer the question "What is a source of drinking water?" with the following options: - ice expanding in rock openings - helping to prevent floods - industrial runoff - it helps plants in growing - Water seeping out of a spring - salt water - polluted water - Something with a head, thorax, and abdomen
(Answer)
Water seeping out of a spring

Ques: Fact 1: Completing a circuit causes electricity to flow through that circuit. Fact 2: An electrical current is a flow of electrons. Given the two facts above, answer the question "completing a circuit causes _ to flow through that circuit" with the following options: - heat energy - pulse - heat - photons - complete - energy - Heart rate - electrons
Ans: electrons

(Q).
Fact 1: Echinoderms lack a centralized nervous system. Fact 2: Echinoderms are represented by the starfish. Given the two facts above, answer the question "what lack a centralized nervous system?" with the following options: - barnacles - nervous fish - insects - bees - Pesticides - alpacas - fish - starfish
(A).
starfish

Ques:Fact 1: Riding a bike does not cause pollution. Fact 2: Pollution is anything that spoils the environment. Given the two facts above, answer the question "What does not spoil the environment?" with the following options: - Operating a factory - Driving a car - Riding a bike - food and shelter - hydrate their cells - lowered energy cost - Burning a fire - peachleaf willow

Ans:Riding a bike

Ques: Fact 1: Bacteria in soil convert atmospheric nitrogen into a form usable by plants. Fact 2: Plant adds nitrogen to the soil. Given the two facts above, answer the question "what feeds plants?" with the following options: - animals - insects - virus - bacteria - coal - bees - cells - sugar
Ans:
bacteria