Fact 1: Conserving resources has a positive impact on the environment. Fact 2: Humans meet some needs and wants by using resources found in the natural environment. Given the two facts above, answer the question "What effect has the existence of humans had on the environment?" with the following options: - climate - Negative - Neutral - Positive - Smoking - It expands - sweating - None
Negative

(Question)
Fact 1: Mating is generally preceded by courtship. Fact 2: Males and females mix only to mate. Given the two facts above, answer the question "What engages in courtship?" with the following options: - Males and females - elephants - fur seals - it keeps an organism warm - science - Males and males - books - warm-blooded
(Answer)
Males and females

Ques: Fact 1: Cartilage is a tough tissue that contains a protein called collagen. Fact 2: Acid helps dissolve collagen. Given the two facts above, answer the question "what can acid help dissolve?" with the following options: - drink - layers of fat - an object - a solute - cartilage - Sediment - Bodily water - roots
Ans: cartilage

(Q).
Fact 1: Landfills have a negative impact on the environment. Fact 2: Landfills are the places that our garbage is taken to be buried. Given the two facts above, answer the question "What damages our environment?" with the following options: - Pollution - flooding - harmful substances - Burying garbage - humans disturb it - Planting trees - Recycling - Using renewable energy
(A).
Burying garbage

Ques:Fact 1: Bacteria in soil convert atmospheric nitrogen into a form usable by plants. Fact 2: Rhizobial bacteria convert atmospheric nitrogen into nitrate fertilizers in a form usable by plants. Given the two facts above, answer the question "What does rhizobial bacteria do for plants?" with the following options: - Converts oxygen - nutrients - Converts h2o - Converts nitrogen - Regrows it - hydrate their cells - Converts methane - competing for resources

Ans:Converts nitrogen

Ques:Fact 1: Astem is used to store water by some plants. Fact 2: Stems Stems are the support structures of a plant. Given the two facts above, answer the question "Where is water sometimes stored in a tree or plant?" with the following options: - stomach - evaporation - support structures - at or near the margins - reservoir - watershed - near the shoreline - lake

Ans:
support structures