Yes , your answer is correct . just use your notes & continue going with first mind
I think it’s conservation
Answer
Characteristics of young rivers are;
• The river is small and flows with less energy down steep slopes
• Features formed are a result of erosion
• These rivers form V-shaped valley
• Form interlocking spurs when they meet obstacles
Explanation
A river in its youthful stages has a steep river gradient. The river is in most cases narrow and deep. Waterfalls and rapids are common in youthful stages of a river. The river channel is considered narrow and deep, with a V-shaped valley present. Vertical erosion is dominant and the channel of the river generally winds.
Natural ladybugs.
You can indeed use ladybugs in a pest control, but that depends on the pest. Since in the question, you don't specify what the pest is, the answer is natural ladybugs.
If the animal was something that ladybugs eat, like aphids for example, than ladybugs could be used as a pest control insect.
Hope it helped,
BioTeacher101