Select the three hypotheses. Grass prevents erosion when planted on a hillside.

Eating sweets may affect weight gain in children.

Brand X battery maintains a charge longer than brand Y.

Hummingbirds are aggressive animals.

A child will catch a cold if she plays in the rain.

If a plant receives fertilizer, it will grow at a faster rate.

Eating sweets may affect weight gain in children.

A child will catch a cold if she plays in the rain.

If a plant receives fertilizer, it will grow at a faster rate.

Hypothesis is an educated guess. It is necessary to have a Hypothesis before performing an experiment. There are also other steps or requirements you need before conducting experiments. A Hypothesis usually has what is known as an if-then statement. Example: If do da do, then this will occur. "IF" is the first part, "THEN" is the second part of the statement.

1. desertification

2. captive breeding

3. black rhinoceros

4. renewable resources

explanation:

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