Question

read the text.
ants - not humans - may have been the first to \invent\ farming. scientists have discovered that millions of years ago, in a south american rain forest, ants learned how to cultivate fungi for food. now some 250 species of ants tend fungi in underground chambers throughout north and south america. like human farmers, ant farmers face many challenges. maintaining an even temperature is key for crops, including fungi. ants make sure their crops stay at the right temperature by making their chambers deep underground. controlling humidity is also an issue. sometimes ants need to add moisture to their fungi, so they bring in plants covered with dew. farmers, both human and insect, must constantly deal with pests. some types of bacteria may damage ants crops. in response, ants treat their crops with chemicals, just like human farmers.
match the problems with their solutions.
temperature changes may hurt their crops.
some kinds of bacteria may hurt their crops.
humidity changes may hurt their crops.
problem
solution
ants dig deep chambers.
ants bring in water.
ants treat crops with chemicals

Explanation:

• For the problem "Temperature changes may hurt their crops", the solution is "Ants dig deep chambers" as the text says "Ants make sure their crops stay at the right temperature by making their chambers deep underground".
• For the problem "Humidity changes may hurt their crops", the solution is "Ants bring in water" because "Sometimes ants need to add moisture to their fungi, so they bring in plants covered with dew" (dew is a form of water).
• For the problem "Some kinds of bacteria may hurt their crops", the solution is "Ants treat crops with chemicals" as "In response, ants treat their crops with chemicals, just like human farmers".

Answer:

• Temperature changes may hurt their crops - Ants dig deep chambers.
• Humidity changes may hurt their crops - Ants bring in water.
• Some kinds of bacteria may hurt their crops - Ants treat crops with chemicals.