Asandbar is formed by water moving sediment downstream, and bare sandbars are the ideal spots for new stands of cottonwood. Given these facts, what is required for the ideal habitat for new stands of cottonwood among the following options: - sunlight - nutrients - warmth - Sediment - Black tar - Hot magma - trees - Chainsaws
Sediment

Aplant requires photosynthesis to grow, and bamboos are vigorous, rugged plants. Given these facts, what does bamboo do to grow among the following options: - hydrate their cells - melt - they bend - deglaze - reproduce - photosynthesize - emancipate - survival
photosynthesize

Q: Ethologists usually study how animals behave in their natural environment, and ethologists study animal behavior. Given these facts, what usually studies how animals behave in their natural environment among the following options: - psychologists - zookeepers - looseness of dirt or compost - it's state - that material's properties - teachers - sensory neurons - animal behaviorists
A: animal behaviorists

Question: Fanning a fire increases the oxygen near the fire, and then nothing was heard but the bellows which fanned the fire of the furnace. Given these facts, using a bellows can do what to the oxygen near a fire? among the following options: - increase - evaporation - diminish - absorb - decrease - It expands - electrically - heat
Answer: increase

*Question*
Recycling has a positive impact on the environment, and recycling means reusing things. Given these facts, what has a positive impact on the environment among the following options: - temperature - reusing things - a hydraulic system - water conservation - peachleaf willow - density - Green beans - addition
**Answer**
reusing things

Q: Evaporation of sweat uses energy, and the energy comes from body heat, and when sweat is evaporated into the air, it provides additional cooling. Given these facts, energy that comes from body heat can help with among the following options: - recovery - commuting - movement - cooling - strength - stay warm - health - motion
A: cooling